Well, if you have enough patience, he could be a useful SF... You can lift up his JS in a couple of seasons, and I would recommend you to train One on One, Pressure and some Passing for start... That will lift all of his outside skills except for Jump Range, but respectable JR is OK for SF...
Look at this player of mine, before and after 4-5 seasons of training:
Giuseppe Vallome
Before:
Jump Shot: pitiful Jump Range: inept
Outside Def: average Handling: respectable
Driving: inept Passing: respectable
Inside Shot: pitiful Inside Def: average
Rebounding: awful Shot Blocking: average
Stamina: mediocre Free Throws: awful
After:
Jump Shot: prominent Jump Range: strong
Outside Def: prominent Handling: wondrous
Driving: tremendous Passing: sensational
Inside Shot: pitiful Inside Def: respectable
Rebounding: awful Shot Blocking: average
Stamina: mediocre Free Throws: mediocre
So, it's possible to make him a shooter, but after 3-4 seasons, you'll need to start training him in inside skills...