Sometimes, a potential breakout player stands out so well from the crowd that his value exceeds his highest expectations in a hurry. Players like had rave reviews for McCluster's first day of training camp, and noted that he received a large amount of carries for the Titans.
This echoes the sentiment of the Titans' official website, which mentions McCluster's return to his "natural" position of running back. That puts him in competition with Fantasy Football Calculator. The last time that McCluster received a decent portion of his team's carries, 2011, he finished in the top 40 among running backs.
The running back finished the 2011 season in the top half of his peers with 75-150 carries in both Rushing NEP and Reception NEP. He was versatile enough to earn continued touches, and he turned those touches into production. He's since been buried behind one of the best backs in the game (Jamaal Charles), and seems poised to break out yet again.
And with a price tag as the 55th back in a PPR draft, or a freebie at the end of a standard draft, his upside and floor are well worth considering over purely speculative or injury-based plays like Knile Davis or James White.
McCluster could be on the verge of a Darren Sproles-like breakout as a starting fantasy running back, and comes with a lower overall risk than many of the more trendy "breakout" picks you may have been considering this season.