That's a fair point, and removing him would seem a bit machiavellian by design, but I quite like the way Bayern transitioned from Heyneckes to Guardiola even after the former won the treble, and on matters of principle deserved another go. Granted Juup was a bit older than Van Gaal is right now, and maybe he was unmotivated (if Der Spiegel is to be believed), and we can't say conclusively if it was the best short term decision given their inability to win Champions League (a harsh criticism of Pep perhaps). But theoretically, it made a lot of sense to bring in one of the, if not the best manager in Europe to ensure future sustainability even though Heyneckes did wonders with the squad. I just worry that Louis might not be able to stick around beyond his 3 years, or might not have the desired level of success in his third, and we'll be left with no suitable alternatives by virtue of passing on three really good candidates just a year before. Obviously there's a fair bit of speculation there, but I'd just want United to do the due diligence and cover all the bases if good alternatives (even upgrades) become available.