"Just being around him kind of made me a little bit better," Dillard said. "He had some good words for us and showed us a lot of technique and just things that help a lot. I've watched a lot of his film, and I've learned some pretty valuable things just in the few times I've met with him."
Staley and second-year tackle Mike McGlinchey started working out in San Diego in late February as they both prepare for the 49ers' rigorous offseason program, which kicks off on April 15.
Dillard, 6-foot-5 and 315-pounds, had a 40-time of 4.96 seconds, a vertical jump of 29 inches, a broad jump of 118 inches, completed the three-cone drill in 7.44 seconds, 24 reps in the bench press, and a 20-yard shuttle time of 4.4 seconds at the NFL Scouting Combine in February.
Dillard is expected to be selected in the first round of the draft.