Willis, Hawkins, Matthews, Mulder, Humphries, and Wynyard give us some experience. Willis, Hawkins, and Matthews have all logged important minutes and have all started at some point in their careers. Mulder should be better next year with a year under his belt. Humphries is just 17, another year of maturity should help him. Wynyard is still a mystery, but will have an extra semester of practice to help him.
Mix in the talent of the new five (hopefully six) and we should be in pretty good shape.
I think we start at least three Freshmen (Fox, Monk, Bam) all year long.
Willis and Matthews could start at least to start the season, but I think Gabriel will likely start by season's end, replacing one of them in the lineup.
I wouldn't be shocked if Cal starts five Freshmen by tourney time, especially if we get Bolden.
I expect Willis to get big minutes regardless of whether he starts or not. Matthews and Hawkins should also see significant minutes.
Killeya-Jones probably gets most of the backup 5 minutes, if he is ready. If not Humphries or Wynyard get a crack at those minutes.
If Mulder can improve his defense and shooting, then he might steal some minutes at guard.
I think next year should be fun. Those Freshmen are really good. We should compete for a title, as usual, but Duke, Michigan St., KU, and UCLA are going to be very good as well.