The decision made by Mitchell Trubisky to depart North Carolina a year early has brought criticism from analysts in that he only played for one season and needed another year of college play for the experience in that his game was not yet ready for the NFL. The two reasons being advanced for why he left early were to take advantage of an opportunity in that the 2017 QB draft class was not a particularly strong one and therefore he would be drafted higher than in a stronger draft class; and that the Cleveland Browns had the first overall selection in the draft and were in need of a QB and that since he grew up within 30 minutes of Cleveland and was always a Browns fan it would therefore be a dream come true for him if selected by the Browns.
But I think that there is another reason for why he left North Carolina which he can never state and that is the strength of the team that he would be leading at North Carolina for 2017 and the prospects were not very good. For instance, the two leading Running Backs, Elijah Hood and T. J. Logan, were moving on to the NFL Draft, his three top Receivers, Ryan Spitzer, Mack Hollins and Bug Howard, were finished and moving on and arguably his three best Offensive Lineman in Center Lucas Crowley, RT Jon Heck and LG Caleb Peterson had used up their eligibility and that is only from the offensive side of the ball. The defense, which wasn't very good to begin with, lost its best defensive lineman in DT Nazair Jones along with DE Mikey Bart and one of two good corners in Desmond Lawrence along with FS Dominique Green. Even the Place Kicker, Nick Weiler, had finished his career as a Tar Heel. And since NFL teams do take into consideration how many wins that a QB has in college this situation must have entered into his deliberations and for obvious reasons he can never reveal.
Another criticism of Trubisky is that when he was a Sophomore he could not beat out senior Marquise Williams for the starting QB job as Marquise Williams ended up not being drafted and was cut by both Minnesota and Green Bay but this is a totally bogus argument. Here is the rest of the story on the Marquise Williams situation. Williams was a high school Super Prep All-American, Parade All- American, Tom Lemmings All American and 4* recruit; and who knows what promises the coaching staff made to lure him to North Carolina, but such doesn't matter as his play on the field warranted his continuing as the QB and probably would have created a player mutiny if he had been replaced. Williams established more than 20 UNC records, including career rushing TDs by a QB (35), career rushing yards by a QB (2,458) and career total offense (10,423). He was responsible for more career TDs (99) than any other player in school history (and that includes Charlie "Choo Choo" Justice), and only 2 players in ACC history had more at the time that he graduated. Between 2014 and 2015 he was 5 time ACC Offensive Back of the Week, including 2014 against Notre Dame where he completed 24 of 41 passes for 303 yards and two TDs and rushed 18 times for a career high of 132 yards and a TD and caught a 23 yard TD pass from a WR. During his senior year in which Williams started all 14 games, the Tar Heels lost their first game against South Carolina, then went on a tear winning 11 in a row before losing to Clemson in the ACC Championship Game (45 - 37) and losing in the Belk Bowl to Baylor (49 - 38), hardly offensive shortcomings. And in 2014 Williams was All Conference Second Team by the Media and in 2015 was All Conference Second Team by both the Coaches and the Media to some guy named Deshaun Watson. Bottom line, the college game is different from the pro game and Williams was immensely successful in the college game and in addition Williams had seniority over the then sophomore Mitchell Trubisky.