Things might get really interesting if Chelsea bring the right manager for themselves. But there isn't a definition of this in me yet.
They need to make their choice wisely about a manager. I mean that they should be careful about the strategies and tactics of that manager. If they don't match Chelsea then there is no meaning in signing him. I know that they are in a critical time period now so this is exactly why they should be careful with their choices as of now. Their chance against Real Madrid will still not be high though. But if they sign a solid manager then they can at least fight harder in this round against Real Madrid. Nagelsmann seems to be one step ahead now.
With the current conditions, this is actually a little difficult, especially in this case, the possibility of a new coach, of course, there are two, namely the same as what Tuchel did at Dortmund, who was immediately praised or did not rule out the possibility of returning, for example, to Potter.
Things are still unpredictable now, but for the Champions League with a new change of coach and the team's not-so-good performance and mental condition right now I'm still not too sure they can advance to the semi-finals.