Cole has a proven track record, so I think we can expect him to shoot high 30s, at minimum, approaching 40%. Ditto Buddy.
Joe hasn't shot as well as we need him to. If he can improve / show better shot selection, then he might be around 35%. Can Jimmy match that? How will Benny shoot?
We might be a pretty good three point shooting team, with those raw materials. But I'd hesitate to call them the best in college basketball, with 1 being completely unproven at our level, 1 being a true frosh, and a 3rd not having shot the ball impressively to date over the first two years of his career.