Lions DE Cliff Avril credits Kyle Vanden Bosch as the "turning point" in the team's attitude and improved play last season. "He leads everybody," said Avril. "From the D-Line to the offensive line to everyone -- everybody has much respect for him. ... He's the changing point as a leader since I've been here as a young guy." KVB has joined Matthew Stafford in heading up offseason workouts as well. Coach Jim Schwartz's stakeout on the eve of last year's free agency has paid immediate dividends.