Here is a quick look at a few ex and current Purdue Big men; statistically:

6'8" Jim Rowinski 1981/82 (Sophomore season)
14.6mpg  3.4ppg  3.8rpg

6'9" Steve Scheffler 1987/88 (Sophomore season)
16.6 mpg  6.8ppg  4.4rpg

6'9" Travis Carroll 2011/12 (Sophomore season)
16.7mpg  3.0ppg  3.2rpg

I'm not saying Travis Carroll can or will become an All-B1G type of guy...but I am saying you shouldn't give up on a guy during his Sophomore season.