I'm no fan of BR's, far from it. But I do think that his role as a manager is very limited to what it was under kenny and raffa. I don;t think he holds the purse strings at all and given the chance again I think he would rather have stayed at Swansea. Of course, this we'll never know until a book comes out in the future.
You say his net spend is one of the highest. That means phuck all as he has had to build a squad of players, not add quality to an existing team like any other team (apart from Sunderland)
£100 Mill is enough to buy just 3 (possibly 4) Top 4 players.
BR had no choice but to leave Swansea, they didn't want him, since he left, Laudrup has got them in to Europe, won a cup and sold nearly all of Rodgers' best players. It says a lot.
As to not having a lot of freedom, his first signings were Allen and Borini and from what I heard he wanted a lot more until FSG blocked his requests and with good reason.
We have one of the highest spends in the league, but have nothing to show for it, how does that mean [oops] all, it says a lot to me. No, he could have added quality to the existing team he chose not to, he came in all guns blazing wanting to get rid of everyone associated with the club beforehand, didn't give anyone a chance and wanted to re-model the club on his fake 180 page document including restructuring the academy to his shitty tactics and ideas.
100m is enough to build a top 4 squad, taking transfers other Premier League clubs have made over the last 2 seasons you can easily create one, added to what we had before. Here's mine based on clubs below us -
Reina
Butland - 3.5m
Enrique
Rat - Free
Agger
Lovren - 8m
Skrtel
Toure - Free
Wilson
Johnson
N.Clyne - 3m
Spearing
Lucas
Wanyama -12.5m
Gerrard
Henderson
Downing
Redmond - 2m
Bentley - Free
Sterling
Shelvey
Michu - 2.2m
Dempsey - 7m
Benteke - 8m
Suarez
Total spend - 46.5m