Dannell Ellerbe (left) contributed 101 tackles, two interceptions and one sack in the 15 games he manned the inside linebacker position for the Dolphins. But there's something missing when it comes to Ellerbe's ability to read and react to running plays. Adding another inside linebacker could allow Ellerbe to move to the weakside spot, where he'd replace Philip Wheeler. Only one draft prospect - Alabama's C.J. Mosley (right) - is a sure thing as a starter who could unseat Ellerbe. The rest are rolls of the dice.
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