Joel Bitonio, an alternate union rep and friend of resigning president JC Tretter, acknowledges the "vulnerable position" of the players' association amid leadership exodus.

NFLPA chief strategy officer JC Tretter is resigning from his position, three days after Lloyd Howell stepped down as executive director of the players’ union. Tretter told CBS Sports on Sunday that he doesn’t want to be considered for the NFLPA’s interim executive director position and denied he played any role in undermining