It's hard to say they have trouble getting a coach. I think with their current financial situation it will be easy to get a good coach. But it looks like they have their own policies and they don't want to rush like Potter's election.
At the moment Lampard's problem is to understand the new players. They need adaptation and at the moment they are not a good team. So I wouldn't expect much on Lampard to bring Chelsea better. No worse than potter, maybe that's my best expectation. In the UCL I think they also don't have as much hope as they will be against Real Madrid.
Lampard is optimistic to get Chelsea into shape, but he needs support and good cooperation from players and everyone. Some players haven't adapted well to the team, Lampard has a duty to make it better. I noticed that Chelsea need a good touch from Lampard even though I doubt it, but Yes, he should be supported instead of hated.
It's difficult for Lampard to be expected to be able to beat Real Madrid in the Champions League, but there's nothing wrong with seeing how he proves the quality of his team this time. Chelsea are a good quality team but they are just unlucky with goals.
Previously Chelsea under Lampard isn't too impressive and if i am not mistaken Chelsea even unable to advance to quarterfinal when Lampard train this team before so i highly doubt this time he can able to bringing Chelsea to beat Real Madrid especially Chelsea currently looks difficult to win and players mentally also seems dropped and maybe if they can able to beat Wolves last week i would say there is opportunities for them to gets at least get draw result from Real Madrid
But Chelsea even cannot beat Wolves on premier league and we all know Wolves is weak team on that competition so my question is how Chelsea will be overcomes Madrid if they even lose from Wolves and my predictions Chelsea will lose twice on the first leg and second leg so obviously their journey will be ended here