Lane is a 6-foot-, 275-pound converted tailback.
Baker is a 6-foot-3, 244-pounder with H-back capabilities.
In 2011, he caught three passes for 27 yards and one touchdown.
He spent 2012 on injured reserve with a knee injury.
He played at Delaware and Northwest Missouri State, where he caught 66 passes for 838 yards.
Two years ago, Lane played in every game for the Dolphins and started five games.
For the Aggies, he rushed for 2,090 yards and 49 touchdowns.
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Aaron Wilson covers the Ravens for The Baltimore Sun