"These guys look like that had something," Hargreaves told Premier League Productions.
"And I think if [N’Golo] Kante comes in instead of Jorginho, that’s going to be his best team for a while.
"Timo [Werner] is a really good player, but he looks like he’s struggling with confidence. [While] these guys there, they look like they gel, like they’re connected.
"[Ben] Chilwell and [Christian] Pulisic [on the left], [Callum] Hudson-Odoi and [Mason] Mount [on the right], and [Kai] Havertz is kind of linking them all together.
"So when it works, you’ve got to let the boys do it and figure it out more.
"Timo, I think he’s been unlucky, and he’ll come good, but these guys look like they have chemistry right now."
Chelsea put in their best offensive performance under Tuchel against Crystal Palace and Kai Havertz dovetailed brilliantly with Christian Pulisic and the in-form Mason Mount.
All 3 of Chelsea's strikers will struggle to start regularly at this rate and Timo Werner is likely to be worried about his spot too.
