I don't think Ivanovic should be a nailed down contender for the first team spot.Chelsea could and should do much better than him, especially in a spot such as right-back, considering how much we try to shift it to the wings. But right now our hands are tied at the back considering what the situation is, atleast Hiddink's is. He can come in and either stick with what he thinks he is right or experiment with Baba. In a time like this where interim managers come in, reputation often precedes any other characteristic, especially considering how Hiddink would love to play the "Old Guard" card and stick with good ol' term of experience right now. The fact is Baba could do much better than Brana or he could do much worse, as an interim manager Guus wouldn't want to take risks. Simple thing to do, is wait until the end of the season, lay down our priorities and chase a different way of how we want our defensive line to look like. Also I'm pretty sure when Alex said "Form is temporary, class is permanent" kind off pushes the reputation agenda, something, which I say again, carries more importance in the current climate.