You make some good points here and I have felt all along that he has been handcuffed by John Henry. I remember the talk when Bloom was hired that he would bring a balanced approach coming from Tampa in that he would cut costs but be able to spend when needed as this is not a small market like Tampa. So he DID cut payroll drastically but he has still spent some $$ although I am not sure how well he spent those $$. His big sign was Story who in my view was an UNMITIGATED disaster. I think most of us believe that signing was made because they knew they would not be keeping Xander.
All that aside my biggest disappointment has been his inability to add any young quality SP. That was and still is one of Tampa's strengths but Bloom brought none of that to Boston. IMO he could have used the Mookie trade, and trading our impending FA'S from last year who all walked for next to nothing. He has also not used any high draft picks to add quality young pitching. This is his biggest fault in my view and I don't see any pitching prospects he has brought in as close to MLB ready. I think our farm system although improved on his watch is over-rated. I'd fire him after this year but have little faith that any new GM can do any better under this ownership's current philosophy.