Recently, no, not really. Especially drafting.
But to sum his career up as a GM as "isnt that great" is pretty crazy. Although I think you were just trying to say he isn't infallible with a golden Midas Touch rather than dismiss his career.
He has done some very sharp things over the years. He understood teams were paying guys in that age 29-32 range based on past performance and you had to be cutthroat on when to get rid of them rather than pay them for their next deal. Early in his run, he realized teams weren't valuing 3-4 defenders as much as 4-3 guys so he switched the D to 3-4 and built the defense off that. Later on, he realized TE's, slot WR's, receiving back specialists were undervalued compared to WR's/RB's which helped build the 2nd stage of the run. You could go on and on. He also signed the subject of this thread, Stephon Gilmore, who ended up being 1 of the best free agency since the NFL went to the salary cap era.
This shit is hard though, that is the main thing I'd try to tell people and what I'd say in the TB/BB thread. To constantly find edges like that and to constantly identify talent better than 31 other teams that have the same financial resources as you is damn hard. Look at Seattle, they reeled off 4 all-world caliber defensive guys in like 3 years and I'm not even sure they've drafted 1 pro bowl caliber guy since. Examples are endless. The game of football and football management is filled with volatility and variance.
Years ago he would do a good job. Always got rid of players about to make big $$$ 1 year early and was able to get higher draft picks. Always able to trade down draft picks to accumulate more draft picks. Also always knew when to trade up 1 slot above a division rival and take "their guy".
If Brady was married to just an "average jane", then he would have commanded more $$ and would have screwed up the salary cap. It helps that his wife makes 50 mil a year (guesstimate) so Brady doesnt need to stretch every penny out of Bob Kraft. By Brady taking a few million less, those monies were able to be put into other places.
Belicheck a great formula for winning. Great o-line, platooning running backs and utilizing 1 more when they have the lead and 1 when they are behind. Always loved the white receive who could catch. Always loved multiple tight ends for mismatches. He is and has also been 1 of the best defensive football coaches of all time.
Seattle was a great example. They were able to get those all world caliber defensive guys when they were paying their stud QB 3rd rd pick money on his rookie contract. Now look what happens when Russ signed his big deal? They had to break up the legion of boom.
Seems like the key to winning the super bowl these days is either 1) have a QB on his rookie contract or 2) Have Tom Brady as your QB. The only exceptions in the last 10 years were that both manning brothers won super bowls. However Peyton was a shell of himself when they won