08:19 AM ET 11.19 | Minnesota wide receiver A.J. Barker made his point in both short and long form over the weekend, announcing on Twitter he was leaving the team and seeking to transfer for his final season. He also created a Tumblr page where he published what he says was a letter he sent to head coach Jerry Kill, explaining why he is quitting. That letter -- which is more than 4,000 words long and contains some strong language -- has some harsh words for the head coach. It alludes to an apparent confrontation. ... He wrote in the letter: "In light of that pathetic, manipulative display of rage and love you put on this past Thursday, I have come to the decision, with the guidance of my parents and my closest friends, that my time on this team has come to an end."