On Tuesday, Jones committed to Oregon State.
"They did a great job," Mater Dei coach Gary McKnight said. "The head coach was out all the time to see him play. Jay John was there all the time. I think Jay learned that from Lute [Olson]." John is a former Arizona assistant.
Last season, Jones averaged 11 points but played on a team with numerous Division I signees. He's sprouted up to 6-7 and, according to McKnight, is really stroking 3s. The coach has sent over 70 players to Division I basketball in his time at the helm of the program, including Miles Simon and Cedric Bozeman to name a few.
"I think [Marcel] has a chance to come in there and play real soon," McKnight said. "He's moved to the 2 [guard]. He'll naturally score more points."