but look at the loans from another side...
who often you buy 3 players and only one of them turns out to be worth his money ... with all these loans we will happily send back all players that failed of the season (and one season is enough to evaluate that) and only make the deal permanent for the players that did bring something to the table. what if aquilani is always injured ? no problem, they can have him back ... same goes for the other loans. we were sure that we needed a new centreback and we got bonucci on permanent. we were sure we needed a replacement for camo so we got krasic. for the others its more like "better have some player you're not yet convinced by for the position you need than having no player at all for that position".
its like buying stuff in the internet and sending it back after two weeks of usage