Per Redskins Insider:
The number not-crunch saving Brandon Lloyd at WR is that we have 5 without Keenan McCardell, but Santana Moss might be a lot more injured than we thought thus necessitating a 6 man lineup. From the above RI article:
Strange how that works out; usually it is the younger players who have to wait for some timely injury or the undeniable effects of aging to move up the depth charts and, subsequently, income tax brackets as they are rewarded with more lucrative veteranesque contracts. In this instance it is a 37 years old free agent, which makes him an antique unless his name were Jerry Rice, who lucks into favorable circumstances when two players 10 years his junior injure themselves. In practice or exhibition. Tough business, that NFL.