nick caserio was the pats director of player personal during the pats winning records, he made sure brady had weapons and he didnt limit his roster to just the draft like ballard does. he had 22 years of experience and his team record was 246-107-1 . imo he should be ranked number one of gms, in 2 years under him the texans went from last place to fighting for first in our division. his trades and roster filling have been one of the best in the nfl. he had a big hand in the pats dynasty. ballard could take lessons from his method but ballard wont change. ballard imo should be ranked low tier