So when Richardson was invited to catch passes at the first day of the Elite 11 finals Wednesday, it wasn't a surprise that he showed an immediate chemistry with any and all of the 25 invitees, including his future California teammate Jared Goff.
"It's just an honor to come out here. He's looking real good out there," Richardson said of Goff. "It will be real exciting to go up there and have him be my quarterback."
It turns out Richardson wasn't the only one looking to the future. Goff went to Williams for a scouting report on the three-star prospect who committed to the Golden Bears last week.
Said Williams: "He has great hands and his routes are great also. He never drops a ball when I throw to him. His routes are just so crisp and he has deceptive speed."
But the biggest praise had nothing to do with Richardson's skills as a receiver.
"I said (to Goff) he's a great dude and you're lucky you got him," said Williams, describing a jokester in the huddle.
There was nothing funny about the reasons Richardson picked Cal, citing his relationships with head coach Jeff Tedford and assistant Wes Chandler among other factors.
"It was just the education, and then when I went up there I fell in love with the environment, the campus," Richardson said. "I wanted to be committed before the season, so Cal was just a perfect fit."
Richardson said he is finished with his recruitment and does not plan to take official visits beyond a trip to Cal.
"I'm done," he said. "Nobody is beating Cal. It's done."
Dan Greenspan is the publisher of Cal Sports Digest and covers the Pac-12 for Fox Sports/Scout.com. Follow him on Twitter @DanGreenspan.