We don't know that he'll be the starting QB, but if he is, should Tiger fans be concerned about his durability?
Should JUCO transfer John Franklin III earn the starting job for the Tigers this fall, the offense should be expected to resemble 2013 and 2014 under Nick Marshall. During those two seasons, Marshall totaled 325 rushing attempts (172 in 2013, 153 in 2014). That's a lot of times for the QB to carry the ball, but it's about average for any team running an option-style offense.
Nick Marshall was listed at 6'1, 210 lbs when he arrived at Auburn in 2013.