This move likely means the Lions are done addressing their back seven. They signed linebacker Stephen Tulloch Sunday morning and added linebacker Justin Durant earlier in the week. They also signed cornerback Eric Wright, who is expected to be one of the starters at the position along with Houston.
Although the cornerback position doesn't have a superstar like Nnamdi Asomugha, it does have some talent. In addition to Houston and Wright, the Lions have Aaron Berry, Alphonso Smith, Nathan Vasher, Brandon McDonald and Maurice Leggett. There is enough talent that the Lions should be able to get by with their secondary, especially considering how good the front seven is for them.
Really the only moves the Lions now need to make going forward are re-signing defensive ends Cliff Avril and Turk McBride. They also might re-sign linebacker Bobby Carpenter, but other than that they are in good shape after an excellent week of free agency.