So, who is our best option left on the table at this point.
Foster's AAU teammate, Jeffrey Carroll?
http://rivals.yahoo.com/kansasstate/basketball/recruiting/player-Jeffrey-Carroll-121993
The only problem I see, is they look like the same Nick Russellish player. Good shooting stroke, not very physical or athletic.
In terms of style of play, neither Foster nor Carroll is really similar to Nick Russell. Russell was/is a lanky 6'4" whose strengths were facilitating and playmaking. Not that he wasn't a decent shooter and he still might end up being a very good one at SMU but honestly his offensive skills were probably best suited to play PG but his lack of quickness/footspeed made it difficult for him to guard opposing PG's.
First and foremost, Foster is a scorer and he can do that by draining jumpers from deep, from mid-range and he has the athleticism to take it strong to the rim and finish. While he can knock bunches of perimeter shots in a hurry, he is more of a scorer than shooter at this point. He's better suited for the 2 than the 1 at this point. It's really his ballhandling, passing, and playmaking skills that he needs to improve in order to see any time at the 1.
Watching Carroll's highlight vids, I was actually fairly impressed with his athleticism but, again, he does not appear to be a standout ballhandler or passer. I like his jumpshot from mid-range. I think he really needs to put on some solid weight but I think his length and athleticism will allow him to compete in high major ball and I think that's why he's received so many offers.
So in summary
Russell --> Lanky playmaker with enough scoring to keep defenses honest but not overwhelming athleticism
Foster --> Physical scorer who needs to work on his playmaking skills
Carroll --> Long, athletic wing with nice shot but still could use some improvement there
This does not guarantee Foster and Carroll having more success than Russell at KSU, but stylistically, none are really that similar.