NFL draft prospect data from ESPN dating back to 1967 (first year of common draft era). There is text analysis for over 4000 of these prospects in nfl_draft_profiles.csv. You can join each of the datasets together nfl_draft_prospects.csv, which has data on when a prospect was drafted and which team drafted them, and college_statistics.csv which has data on counting statistics for players during their college career, using player_id.

Additionally, college_qbr.csv contains data on college QB's ESPN QBR metric as well as other EPA-based metrics from a college QB dating back to 2004. You can join this dataset using guid and player_name.