League sources believe a good chance exists that a downsized combine complete with live interviews for the elite prospects will occur sometime in August or September once the draft is officially postponed from June 25. Prohm said he is hopeful that happens for Haliburton, an Oshkosh, Wisc., native who is training in Milwaukee. “He’s off-the-charts mature, invested in the university, all about winning and the team,’’ Prohm said. “His character and maturity is very high.”