Johnson has done exactly that -- and more -- during his brief time in Arizona. In some ways, he's brought back memories of his first year in the league, when he was a startling surprise in Tennessee. In those days, Johnson was a relatively unknown kid out of East Carolina whose mind-blowing speed had led to the Titans selecting him in the first round of the 2008 draft. He was supposed to be part of a committee at that time, as well -- the Titans had burly LenDale White in the backfield -- but Johnson quickly emerged as one of the most critical factors in the Titans' fortunes.