Baldini was brought in to create a management and transfer structure at the club that will likely last far beyond Andre's time here. In fact, considering the relatively longer tenure enjoyed by DoFs in their posts and Baldini's relative youth (early fifties, if I remember correctly), I'd wager he stays around for at least three or four years if everything goes well, regardless of AVB's presence (or otherwise) at the club.
And if AVB leaves this summer or next summer (to Barca or anyone else), I'm sure Baldini and Levy will draw up a suitable list of candidates to continue the development of the direct, fast paced side he's building at Spurs, to ensure minimum disruption. We did only give him a three-year contract, after all, and he himself has always stated a desire to end his career early, so I'm pretty sure we have at least one contingency plan in place, with more to come over the coming year. We likely won't see a sea change (like Jol to Ramos, or Harry to AVB) in the way we play, or the type of players we buy: rather, we'll see a coach who continues AVB's 'Mourinho-lite' approach, without tinkering too much with the essential dynamics of the side: powerful, quick, direct, etcetera. I don't think we'll bring in a tactically-inept-but-motivationally-gifted or particularly old manager again: those tend to be expensive, inflexible, incompetent or all three. We'll probably look for managers between 35 and 55 who have a track record of promoting youngsters, building teams on a budget and playing direct, attacking football. Probably not top-tier (Klopp, Conte, Low, etcetera), but a level below that: managers like Diego Simeone, Christian Streich, or Sami Hyppia, with a few 'formerly tier one' managers (like AVB) who've fallen from grace somewhat thrown in for good measure.
One thing is for certain, though: for the first time in a long, long time, we look like we have plans for almost any eventuality, and look coherent both at the boardroom level and on the field. And I could not be more satisfied with that, or more confident that if our manager leaves, our forward progress will continue unabated.