Only thing making him look average is the Redskins FO. If 13000 yards in 3 seasons is average please sign me up for average then.
Kirk Cousins lost his Pro Bowl TE, two best running backs, 2 1,000 yard WRs to free agency, dealt with an inept Terrelle Pryor and played behind 12 offensive lineman this season. Despite that, he finished with 4,100 yards and only Brady and Brees have more completions of 20+ yards.