Former Titans cornerback Denard Walker and All Titans at SI.com writers John Glennon and David Boclair remember former Titans quarterback Steve McNair, who was killed on July 4, 2009. Personal recollections include how each heard the news and their initial reactions. Additionally, the trio looks at whether Tennessee's offense once again will feature a tight end as the most prominent target in the passing game, what an injection of speed at wide receiver could mean and what free agent might be able to provide that element. Finally, the Indianapolis Colts are the most obvious challenger to the Titans' pursuit of a third straight AFC South title. But what is it exactly about the Colts that should concern Titans coaches?

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