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.