The move makes some sense for Tennessee because the Titans have a Week 9 bye to get Moss acclimated to their offense.
The St. Louis Rams and San Francisco 49ers also have Week 9 byes. The Rams in particular have a need at receiver. Why wouldn't either claim Moss? Why wouldn't any team from the NFC West take a chance on Moss?
Rams coach Steve Spagnuolo suggested his team was "doing its homework" on Moss.
That homework could have included finding out through back channels whether Moss would be receptive to joining the team. Other teams that passed on Moss could have been doing the same thing.
Moss can be a high-maintenance player anyway. Working with an unwilling Moss would have been more trouble than it was worth. ESPN's Adam Schefter says Moss wanted to play for the Titans and I'm sure that played into Tennessee's thinking.
The Titans still have two games against Houston and two against Indianapolis. Those games remain weeks and months away. Moss could play a role in the Titans winning those games and the AFC South, should his addition go to plan.