Back in 2000:
a.) Belichick was using Grier's draft board.
b.) We already had 3 QB's on the roster: Bledsoe who was just signed to a huge contract, Friesz who was the veteran clipboard carrier, and Bishop who was some good at Kansas State (remember that Hail Mary TD he had on his first career attempt vs. the Colts just before halftime?....Fun game that day).
c.) **** Rehbein was the guy begging us to draft Brady.
d.) Even though Brady outplayed Henson most of the time....Brady was still a part time starter in college....right or wrong....
e.) Brady was not a dual threat QB. Which was all of the vogue back in 2000 with guys like Culpepper, McNair, McNabb, and Kordell Stewart making an impact at the QB position in the NFL.
That being said....yeah..they waited until pick 199 to take Tommy.... and drafted Tommy after taking Klemm, Redmond (my fave pick that year), Greg Robinson-Randall, Stachelski, Marriot, and Antwan Harris (the guy who took home Troy Brown's lateral in the Burgh!).
So, I would say that Belichick deserves partial credit for taking Brady....not all of it. And at the end of the day, nobody evaluates QBs very well....every other successful QB in the league was MOST likely taken in rounds 1 and 2 (and only maybe 50% of those picks panned out anyway) with a few minor exceptions like Brady, Purdy, Prescott, Warner, and etc... it is a literal crapshoot. BB's inability to draft a decent WR outside of Branch, Givens, Edelman, and Mitchell is more worthy of a discussion......