Granted a chance to start for the Bears last season, Glennon nonetheless was looking over his shoulder from the outset due to the presence of 2017 second overall pick Mitchell Trubisky. Glennon's stint lasted a mere four games before the rookie took the reins of the offense, primarily due to a miserable six yards per attempt, four touchdowns versus five interceptions and a 1-3 record. He didn't play the rest of the campaign and is facing a similar scenario with his new employer, the Cardinals. In addition to a more viable veteran in Sam Bradford, Glennon may find himself third on the depth chart after the selection of first-round pick Josh Rosen. Glennon's best chance to see the field this year will be some combination of injuries and horrendous quarterback play.

Jay Cutler left for the broadcast booth and Brian Hoyer left for the 49ers, so the Bears signed the 6-6 Glennon. They also traded a fortune to move up and draft Mitchell Trubisky second overall, but Glennon, and his $18.5 million guaranteed, are expected to start as Trubisky develops after playing in a spread system in college. Just how long Glennon holds off the rookie is uncertain. Glennon has played two games in two years -- attempting 11 passes -- as the backup in Tampa Bay. His first two years with the Bucs, he played 19 games (18 starts, 13 as a rookie) but didn't impress, completing 58.8 percent of his passes with 6.5 YPA. The Bears signed Markus Wheaton and Kendall Wright, but with Alshon Jeffery gone, oft-injured Kevin White is the No. 1 WR. Trubisky's strong preseason performance could turn this into a competition sooner rather than later.

Glennon didn't take a single snap in 2015, after throwing for 4,025 yards, 29 touchdowns, and 15 interceptions over 19 games in the 2013-2014 seasons. A third-round pick in the second and final season of the Greg Schiano regime, the towering 6-foot-6 signal caller has always been serviceable when called upon, but his presence on the roster didn't deter the Bucs from leveraging their spot at the top of the 2015 draft to nab Jameis Winston. The No.1 overall pick was given the reins of the offense from Day 1 and took every snap during the regular season, leaving Glennon on the sidelines for the duration of the campaign. Trade rumors regarding the North Carolina State product were plentiful leading up to the 2016 draft, but he remains with the Bucs as the team enters into the summer. The team's quarterback depth chart currently goes four- deep however, meaning that the young veteran could still be on the move if a team suffers a key injury to the quarterback position during training camp or preseason.

Glennon was 1-5 as a starter last season for the Bucs, completing 57.6 percent of his passes for 1,417 yards, 10 touchdowns and six interceptions. However, the former third-round pick remained unable to prove in two seasons that he could be the QB of the future for a franchise that has lacked a true identity since its Super Bowl victory in 2001. He is expected to sit behind Jameis Winston this season in what should be a rare mentoring role for a 25-year-old signal-caller. As a backup, Glennon offers moderate arm strength and accuracy to go along with a durable frame.

Glennon was surprisingly effective as a rookie third-round pick last year, posting an 83.9 quarterback rating over 13 starts. At 6-foot-6, 232 pounds, Glennon was always known as a guy who can hit the mark in a clean pocket, but he tends to wither badly under pressure. Those issues were apparent last year, as Glennon took a sack once every 10.4 pass attempts, fumbling seven times in 13 starts. He seemed unable to truly carry the offense, moreover, averaging just 5.5 YPA in the six games he attempted more than 30 passes. He's the underdog in the looming competition with free agent addition Josh McCown, though he'd be on the QB2 radar if he does land the starting job.

Glennon will likely battle Dan Orlovsky for the No. 2 QB spot in Tampa Bay.