Yep, there's plenty of research that shows that changing managers every few months is detrimental to clubs. Too many terrible owners making kneejerk responses - the classic example is, of course, Fergie who'd never have got the time he had these days.
One of the good things about Bloom is that...
When we were promoted, they were relegation candidates. Johnson has taken them from the bottom to be play-off contenders and, as Pav says, they were still competing even after selling their best players last season. There are several clubs in that league who have spent a lot more than Brizzle...