Olson said he will most likely be taking a trip to Cal this weekend.
Olson's plan was to have the Cal coaches in-home on Tuesday night.
Most likely, Olson would be eliminating South Carolina and Oregon.
He had previously visited Arizona State and with UCLA, has taking two trips, with Cal to be his third.
Olson also said that Stanford would be a possibility if USC offensive coordinator Norm Chow took the head coaching position on The Farm, but that he also is trying to move quickly on making a decision.
Olson has set a target date of December 17th for an announcement.