I would defo keep Kenny until the summer, no point replacing him with so little games to go and nothing to play for in the league. Even then though I would look at the season and analyze it as a whole. Would definitely get rid of Comolli, his scouting plan is horrendous and if I was John Henry and saw that he had scouted and splashed out 110m on the players we had bought, he'd be straight out the door.
And to end, I think the good thing about Kenny is that he has give some youngsters playing time in the first team (would like to see sterling and Morgan more though) and I'd like to see Rafa replace him.
I think I would also wait until summer. I'm no fan of Kenny, but it would be pointless to sack him now. We couldn't lure a top level manager with a handful of games remaining, so we would be stuck with a caretaker - most likely Steve Clarke, or possibly, albeit not at all likely, Carra or Stevie is player-manager. And to be honest, I don't think they'd do any better than Kenny would in the short-term. I doubt Rafa would come back as a caretaker without given assurance that he'd be given the job permanently in time. However, I do think that if we end up sacking Kenny, it should happen almost immediately after the season is over. We need to give his replacement a sufficient amount of time to work with the squad, because the Euros will complicate things. Emery looks set to leave Valencia. I would certainly welcome him. Then there would also be the possibility that he could bring Soldado or other Spanish players with him - an added bonus. If Dunk's allegations are correct - that Comolli is responsible for the fees paid for Carroll, Henderson, Downing, etc. - then he should never be allowed near our club again. That man has done nearly as much damage to our finances as H&G!