I sure hope they come back for their own good, if they don't want to be playing in Israel in 2 years. Look at this list of past college guards that are now in the D-League or don't have a current NBA contract. I would say all of these guys were better than what SB and RB have shown so far:
Scottie Reynolds - only as a senior. He never shot higher than 41.2% in his first three years.
Dominic James - not really, and he was awful as a senior.
Sherron Collins I'll give you this one.
Corey Joseph uh, no.
DJ Kennedy - not really, and he played a different position.
Jerel Mcneal - 6'2 shooting guard (although I thought he'd have an NBA career).
Josh Selby - he was a disaster in his only year at Kansas.
Chris Wright (G-town) - Bazz and Boat are/were both better as sophomores.
Austin Freeman - another undersized shooting guard. Not comparable.
Jacob Pullen - 6'1 G who couldn't cut it at point in the NBA.