MLive will preview each of the Detroit Lions' position groups heading into the start of training camp on July 27. Today: Quarterback. Previously: Running back
Roster locks: Matthew Stafford
Competing: Jake Rudock, Matt Cassel
Notable departures: None
Breakdown: Matthew Stafford set every passing record in team history before his 30th birthday. He also hasn't won a single playoff game, and that dichotomy -- a highly productive player who has won nothing of note -- has made him one of the most polarizing athletes in Detroit. But that tide finally seems to be turning in his favor.