It is interesting the comparison of Harmon to Sencire as it seems more likely Sencire wouldn't have redshirted if we didn't bring Justin in. While Justin's early season ability to shoot the cover off the ball from 3, finish at the rim, and make free throws were very favorable and made up for the giant defensive drop-off, taking the whole season and careers into perspective, this is what we see:
Harmon shot 31% from 3 and 47% from 2, both of which are right on his career averages. His free throw percentage was 92% this year on low volume (only 47 attempts), which is much higher than his 78% career average. He was a 1.15ppp player on 15% contributions rate this season, but that isn't anything close to his pre Illinois 0.94ppp average. He did have a 9.6 assomist rate and 1.3 steal rate.
Sencire in his freshman season shot 32% from 3 and 49% from 2, both better than Justin. He was only a 0.96ppp player on 16% contributions but teammate quality does have something to do with that as seen by Justin's huge jump this year as well. And he had an 11.2 assist rate and 3.3% steal rate, both much better than Justin. And Sencire was a much much much better defender overall. So the only thing not in Sencire's favor was his free throw percentage of 20% on low volume (20 free throws).
So when you compare season to season, Sencire seems like he greatly outperformed supersenior Justin Harmon as a freshman. Gut feel is if Sencire just gets a normal free throw percentage, he would be a major benefit to having him on the team and Justin played 19mpg this year...