Rafa is a control freak who's never managed to gain full control at any of his clubs because his or others patience has run out before sufficient success set in. That's not said in a derogatory way, I'll think you'll find that Ferguson, Wenger, Mourinho and others are the same. The difference is that to gain control it has to be released by others. Those others are reluctant to release it partly because they are businessmen or sometimes they do not trust the person wresting it from them, sometimes both.
Abramovich clashed with Mourinho because of it, Ferguson has earned the right to have as much as he can get and the Glazers know it, Wenger has been trusted by his board and his sort of control is different because it's not money based. Rafa was slowly exerting more influence at the club, released because progress was being made, H&G ran out of cash and then this helped to strangle the progress (along with some poor buys) and Rafa effectively lost control of what he wanted to do. Rafa is more team building purchase based than others whose emphasis on motivation (Ferguson), youth development (Wenger) etc is slightly different. As a result he's always going to clash when the money is squeezed unless he takes on jobs where its clearly stated that there's no cash to start with.
p.s. In reply to the earlier post citing the improvement of Lucas under Hodgson, remember this;
Roy Hodgson is not ruling out selling Lucas Leiva, but is not planning to let anyone leave Liverpool before Tuesday's transfer deadline. The Reds boss has confirmed the club would entertain a significant bid for the Brazil international.
