The Patriots were dumb for drafting Aaron Hernandez.  Every team in the league knew that he was a bad kid which is why his draft stock fell so much so I do no know why they would take the risk.  Also if coaches didn't cover up all of his failed drug tests and other off field issues.  He probably didn't care what he did because he knew his coaches would cover it up for him, but if they did not cover his mistakes up he might have learned from them and turned his life around.  You can try and blame part of it on his rough home life with his father dying while Aaron was 12 and his mother being in a relationship with a drug dealer but other NFL players come rom much worse and end up having great careers.  Professional sports teams need to stop covering up their athletes mistakes because it helps the team short term but the more they cover up the more the athlete will try getting away with and eventually they will ruin their careers.