Dominique Rodgers-Cromartie was odd man out in opener

The Eagles barely needed Dominique Rodgers-Cromartie on Sunday against St. Louis. The former Cardinal was only on the field for 19 plays because the Eagles didn’t have to play nickel defense much, according to Sheil Kapadia of Philly.com.  DRC covered the slot on 18 of his 19 snaps; Nnamdi Asomugha stayed on the outside. Asomugha…