2. Miles’ offenses weren’t good
Since 2008 the LSU offense under Les Mile finished in the top 20 in scoring once. That was the Tigers’ 2011 team which featured Spencer Ware, Michael Ford and Alfred Blue in the backfield and a mismatched combination of Jarrett Lett and Jordan Jefferson at quarterback.
Other than that one season Miles has had mediocre offenses, at best. Quarterbacks, with the possible exception of Zach Mettenberger, have struggled tremendously at LSU. His inability to develop that position and utilize it in his offense effectively is one of the things that got him fired.
With Johnny Manziel at the helm, the Aggies finished fourth in scoring offense in 2012 and fifth in 2013. Without Manziel they’ve finished 28th, 71st, 34th, and 44th from 2014 to 2017, respectively. For comparison the Tigers’ offense finished 57th, 23rd, 76th and 43rd in Miles’ final four seasons at LSU.
At best, Miles is a somewhat even trade-off for what Kevin Sumlin was able to accomplish in College Station with his Heisman winning quarterback. At worst he’s no better than the man who was just run out of town.