Motivation is a big key during preseason. The Jaguars have it for this matchup. The Lions don't.

Lions coach Jim Caldwell has lost 12 of 18 preseason games. Winning meaningless exhibition games isn't a priority for him. Matthew Stafford has thrown 10 passes in Detroit's first two preseason games. I doubt he plays for too long, especially with the Lions breaking in a new right guard. Calvin Johnson isn't expected to play.

This is Jacksonville's final preseason home contest. The game is being televised nationally by CBS. Jaguars coach Gus Bradley and Jacksonville management has different priorities than the Lions. They want to build up sagging fan interest and gain needed confidence.

Bradley hasn't pulled Blake Bortles until late in the second quarter. Bradley is likely to use Bortles and his starters well into the second half in order to prepare for the season and appease the home fans while trying to look good on national TV.

Jacksonville's offense and defense has played well at times during preseason. The Lions obviously are the better team, but they don't have great depth and lack the home team's motivation. Bortles is much better than Detroit's backup quarterbacks.