After missing the organized team activities because his class at Oregon had not graduated, free-agent running back Jeremiah Johnson used the three-day minicamp as a learning experience. By the time Johnson arrived in Houston, he had fallen behind Arian Foster, the other undrafted rookie whos trying to make the team. Johnson and Foster are competing with veterans Chris Brown and Ryan Moats for places on the team and playing time behind starter Steve Slaton. Ive been trying to catch up, Johnson said after the last day of minicamp Wednesday. The first day I was out here, I was real far behind, but I gathered a lot of information. Im trying to learn everything I can. Im trying to take everything they tell me and apply it on the field. I want to show them I can be a hard-nosed runner. Source: John McClain, Houston Chronicle