The volatility of the situation Texas A&M has faced at quarterback over the past year is enough to make your head spin.

Prior to the 2015 season, Aggies four-star QB Kenny “Trill” Hill left the team. The writing was on the wall for the 6-foot-1, 215-pounder. Head coach Kevin Sumlin had brought in a pair of five-star quarterbacks and Hill saw himself (correctly) as the odd man out.

That’s despite starting the first eight games of 2014 and throwing for 2,649 yards and 23 touchdowns while completing 66.7 percent of his passes (214-for-321).

He fizzled out of the Aggies program as spectacularly as he began it, breaking the school’s single-game passing record with 511 yards on a 44-for-60 showing in his very first start, a 52-28 victory at highly-regarded South Carolina. He was the first player in school history to throw for 500 yards. His completions and completion percentage (.733) with a minimum of 40 attempts were also school records.

He burst onto the scene with five consecutive victories. But three consecutive losses followed and his Aggies career was over. He was benched, permanently it would turn out. So off he went, seeking greener – or make that purpler –  pastures at TCU.

Sound familiar?

An eerily similar scenario would play out the following season. Five-star QBs Kyle Allen, who took the reins from Hill for the remainder of the 2014 schedule, and Kyler Murray battled for playing time in 2015. Allen started the season with five straight victories, but like his predecessor, got the hook after two consecutive losses.

Enter Murray.

The true freshman completed 20-of-28 passes for 223 yards and a touchdown in his debut, a 35-28 victory over (oddly enough) South Carolina. But a three-interception game and a loss to Auburn a week later all but concluded Murray’s short-lived career at Texas A&M. He played in just one more game, a 22-for-39, 191-yard (3 TDs, 2 INTs) performance the following week vs. Western Carolina.

Allen took back the starting spot for the final two games of the regular season, but the damage was done. Dissatisfied with their roles, both Allen and Murray left the program. Allen bolted for Houston and Murray for Oklahoma.

Jake Hubenak, a late JUCO addition to the Aggies’ 2015 signing class, made his first start in the Franklin American Mortgage Music City Bowl, a 27-21 loss to Louisville. But Hubenak, who played in five regular season games and figured into the quarterback merry-go-round late in the season, threw for 307 yards (28-for-48) and two touchdowns.

He will battle Oklahoma transfer Trevor Knight for playing time in 2016. Knight graduated from Oklahoma in December and will be eligible for the upcoming season.

Knight is no stranger to controversy. He was beaten out as starting quarterback by former walk-on Baker Mayfield, who guided the Sooners to the College Football Playoff. Knight appeared in six games as a backup, throwing for 305 yards (22-for-40) and two touchdowns with two interceptions.

As a freshman he capped the 2013 season by leading Oklahoma to a stunning 45-31 victory over Alabama in the Sugar Bowl.

He played in 24 games for the Sooners, including 15 starts, and threw for 3,424 yards and 25 touchdowns, with 19 interceptions. In addition, Knight ran for 853 yards and eight touchdowns.

Knight played high school football in San Antonio and at one point verbally committed to Texas A&M.

So that’s the immediate fix to the quarterback position. While 2016 will be Knight’s final year of eligibility, Hubenak has two years left.

Sumlin brought in three-star QB Nick Starkel as part of the recruiting class of 2016. He’s a pro-style passer that will add depth at the position. His progress next season will go a long way in determining whether or not the Aggies will need to pluck another graduate transfer for 2017.