well i was just wondering, cause ur statement sounded like u was saying there was a "required" number of players needed for each position, but as far as i know you only are forced to have 1 player per position on roster. as far as a requirement, however i do know there is a set number of "spots/slots" in the depth chart for each position. the qb, having 3 spots, which is why i think some noticed if u only have 2 there , qb wont stay hurt. same for the wrs, if u only have 5 on ur team , and only 5 people set in the 6 spots in depth chart , i bet they wont stay hurt either. i mean you could put a cb in at the 6ths wr spot, and i think it would then fix the issue( by having all spots for wrs full in depth chart) and then wrs would stay hurt. again so far today ive been checking this in my own online cfm and ive noticed all the teams that have players who have sustained injuries for numerous weeks and are still out , ALL have their depth chart filled up at those players positions. however this doesnt mean u gotta have 6 wrs on roster and 6 in depth chart. i dont think the players actual position counts. i think its the number of bodies set for each position in depth chart. i have seen guys with 3 hbs and a fb as the last spot for hb in depth chart keep injuries. i will continue to check this info , however if anyone else can verify these findings sure would be nice!