Las Vegas Raiders head coach Antonio Pierce is very happy the team drafted Brock Bowers last month. While speaking to reporters during the Raiders’ rookie minicamp over the weekend, Pierce was asked why the team selected Bowers at No. 13 overall. “You’re talking about probably the most dynamic football player in college football at that tight end position in a long time,” Pierce said. “It’s rare you get a guy like you know that can line up as a slot receiver, see him in the backfield, reverses, catch the ball, but I think more importantly is his toughness. Watching him block in the SEC, watchi…