Ricardo Lockette is so intent on landing a spot on the 49ers' roster that he bought a white board and markers so he could chart and study plays on his own time.Mark Humphrey Associated PressReceiver Ricardo Lockette and 49ers teammate Colin Kaepernick yuk it up during Super Bowl week, but it's all business as Lockette learns the offense.Colin KaepernickThe quarterback tests receiver Ricardo Lockette by having him draw formations and coverages.Ricardo Lockette The young speedster also spends time studying film of veteran wide receiver Anquan Boldin.