The NBA, NCAA and National Association of Basketball Coaches have joined forces to offer a proposed solution to prevent underclassmen from leaving early for the draft if they aren't assured of being a high pick.

The withdrawal date would be moved to late May, which is nearly five weeks later than the current late-April date.

"This may be one of the best things the NABC has ever done," said John Calipari.

The current deadline to declare for the draft would remain in late April, as stated in the collective bargaining agreement between the league and the players association (this year's deadline is April 26). The official withdrawal date of 10 days prior to the draft (mainly for international players) would not change.

If the proposal is accepted, underclassmen would be able to participate in a new, invitation-only combine in mid-May that would enable NBA teams to evaluate players and then offer feedback on their draft prospects.