Deep ball is fine when Watkins is healthy and on the field.
http://billswire.usatoday.com/2017/07/07/west-coast-offense-tyrod-taylor-buffalo-bills/
"Some of Taylor’s struggles can be attributed to injuries suffered to Buffalo’s key skill players, though. In the 15 games that LeSean McCoy, Sammy Watkins, Robert Woods and Charles Clay all played in, Taylor completed 64-percent of his passes for 3,362 yards, throwing 26 touchdowns and six interceptions. In the 14 games without either one of those players, those numbers dropped to a 61.2-percent completion rate, 2,697 passing yards with just 11 touchdowns and six interceptions."