Managing a club and being an assistant are two completely different roles. One is at the forefront of the club and the other is behind the scenes. Without a doubt Tito seems like the perfect candidate but can he survive the pressure as the boss? Will he be able to identify and incorporate big money players successfully? Can he handle the media? I think its a good decision in the sense that barcelona don't want to rock the boat. However we're talking about someone who has never had a manager role in his entire career.
It could turn out to be like another Quieroz situation. Without a doubt Carlos was a mastermind when he was at Manchester United. Almost the perfect Assistant Manager who helped to modernise the way we trained, played and identified continental talent. However, his Managerial track record has been iffy at best. Some are just born to lead whilst others are better as the no.2.
Tito could fall into this category because its a much different animal when you have to lead such a big club. The one thing he does have in his favor is that he knows the club inside out and has spent most of his coaching & youth career there. Oh yes and of course he still has messi! But If I was Mourinho I would be licking my lips at the prospect of facing off against a relatively inexperienced counterpart. It will be interesting to see how Tito performs when the pressure gets heaped upon him.