Chelsea were "improvising" tactically in the second half of their 3-3 draw with Roma according to head coach Antonio Conte, who admitted that playing David Luiz in midfield did not work.
After goals from David Luiz, Eden Hazard and Roma's Aleksandar Kolarov had made it 2-1 to Chelsea at half-time in Wednesday's Champions League clash, Edin Dzeko's superb brace put the visitors 3-2 up with 20 minutes left to play while Conte switched from a 3-5-2 formation to a 4-3-2-1.
The change seemed to work as Hazard headed the equaliser before Chelsea held out the for the final 15 minutes, although Dzeko went close to completing his hat-trick when he headed narrowly wide in the dying minutes.
"The effort the players put in was the maximum and I thank them," Conte told Mediaset Premium afterwards. "We suffered in the first half and the decision to change system didn't pay off, as it took away all our guarantees.
"We were basically improvising and it showed, as we suffered under Roma's pressing.
"We scored two goals, but the sensation was always that we didn't feel in control of the match. I have to take responsibility, as it was my decision to change the system to make up for the lack of options. I changed the David Luiz position to strengthen the midfield and I don't think it worked, to be honest."
Conte refused to blame his side's struggles during the dramatic Champions League Group C encounter on injuries.
Chelsea were without the injured N'Golo Kante, Victor Moses and Danny Drinkwater, leaving David Luiz to shore up the midfield but the Brazilian was seen struggling with a calf problem during the game.
"It's not about injuries," said Conte. "But trying to get the best out of the team. The same players have been going all the time since pre-season. We've got three injuries, not seven or eight, but it's still an emergency situation for us.
"David Luiz had a problem with his calf, [Tiemoue] Bakayoko finished with a problem in his adductor and I hope it's nothing serious.
"Despite all that, we drew with a very good Roma side and I can only praise my players. When you change system, it's all improvisation and tonight we were improvising. That is something I don't like, because I prefer organisation and to fight it out in our own way.
"I have to thank my players for their efforts, because without that, we would not have managed a point here."
|Griezmann: I don´t regret staying at Atletico|
|Rogers tells Paine to enjoy Ashes: It´s just a game!|
|Warner ready for first Ashes Test despite neck injury|
|Ashes newcomer Bancroft thought Test chance was gone - Voges|
|Warner suffers injury scare ahead of Ashes|
|Guardiola dismisses Champions League favourites tag|
|Jackson excited about Gordon´s return: I get to open a new toy|
|Nuggets head coach Malone suspended for one game|
|Steelers OT Gilbert handed four-game PED suspension|
|Prior hits back at ´ridiculous´ claims as Lyon hopes Australia end careers|
|Dolphins QB Cutler placed in concussion protocol|
|Navratilova leads tributes to ´amazing´ Novotna after her death at 49|
|Brighton and Hove Albion 2 Stoke City 2: Gross, Izquierdo extend home unbeaten run|
|Dimitrov braced for Australian Open expectations|
|Broncos fire offensive coordinator Mike McCoy|
|England won´t suffer Gabba ambush, Malan claims|
|Rose in contention to face Dortmund as Pochettino denies ´issue´ with defender|
|Benzema knows he can give more – Zidane|
|I´ve fulfilled my dreams already – Klopp has no plans to coach Barcelona|
|Memorable Ashes Moments: Unlikely saviour Agar falls agonisingly short|
|Wallabies coach Cheika faces investigation|
|The Ashes: Australia squad profiles|
|Aubameyang will face Tottenham, Bosz confirms|
|Klopp expects Matip to face Chelsea, Lallana return getting ´nearer´|
|Brown could return for England, Underhill out|
|Haye´s rematch with Bellew off due to bicep tear|
|The Ashes: England squad profiles|
|Gatland vows not to rise to New Zealand media barbs|
|Berizzo looking to former Red Aspas to provide lessons for Sevilla|
|Mangala ready to pounce, but realistic on Man City playing time|
|The Ashes: How the urn will be won - the case for Australia and England|
|Innovation key as WTA Media embraces evolving viewing habits|
|Trump calls for Lynch to be suspended as anthem row returns|
|Mendy injury means Aguero or Jesus for Guardiola|
|Kohli proud of India after almost snatching Kolkata win|
|The Ashes: Key contests in the battle for the urn|
|Guardiola sends ´big hug´ to ´amazing, so gentle´ Pulis|
|Tavecchio quits as head of FIGC, claims board have refused to resign|
|Benedetto facing Argentina World Cup KO with cruciate injury|
|Hansen hails All Blacks progress|
|Kohli´s record century precedes Bhuvneshwar heroics, but Sri Lanka cling on|
|Shape up! Heynckes reveals demand to Bayern star Vidal|
|Australia hope to open England ´scars´ in Brisbane|
|Smiling Broad sports bruise after golfing mishap|
|Ramos sits out Madrid trip to APOEL|
|West Brom sack Pulis after wretched run|
|Ball fighting fit ahead of Ashes opener at the Gabba|
|Murray should appoint Delgado as Lendl replacement - Henman|
|Former Wimbledon champion Novotna dies aged 49|
|Lloris wants Spurs to forget title and focus on top four|
|Pogba no Gerrard yet, says Benitez|
|Pearce released from Roosters contract|
|Expect to get six ducks – Paine reveals Rogers´ Ashes advice|
|Lyon: I don´t care if Stokes plays Ashes|
|Curry´s offensive explosion leads Warriors past Nets|
|Ball records second triple-double to join Magic, West in record books|
|Patriots, Ravens win among multiple blowouts|
|Flyers´ Gudas suspended for 10 games for violent slash|
|Two-time NBA All-Star David Lee announces retirement|
|Guardiola will ´kill´ City stars if they get complacent|
|Bills coach McDermott to ´evaluate´ quarterback position|
|LeBron on Kaepernick controversy: I don´t respect the NFL|
|Ibrahimovic: My injury was worse than people know|
|Russell to leave Warriors at end of season|
|Cook cruises to first PGA Tour win|
|Truex wins first NASCAR championship|
|Cardinals´ Fitzgerald now fifth all-time in receiving yards|
|Icardi like a ´raptor pouncing on its prey´, says Spalletti|
|Tired Goffin insists: ´I will be ready for Davis Cup final´|
|In-form Chelsea have regained hunger - Conte|