AP

The Bills officially have two quarterbacks entering contract years.

Starter Tyrod Taylor, who signed a two-year deal in 2015, already was on the front end of the final season of his stay, pending an extension. Joining him is 2013 first-rounder EJ Manuel.

Per multiple reports, the Bills opted not to pick up the fifth-year option on Manuel.

It’s the latest confusing signal from the club regarding a quarterback who has moved up and down the depth chart, repeatedly, in three NFL seasons. And it’s the clearest sign yet that the Bills admit the decision to select him three years ago with the 16th overall pick was a mistake.

Manuel started 10 games at a rookie, four in 2014, and two last year. His 2015 starts came when Taylor was injured.

For his career, Manuel has a 59.1-percent completion percentage, 3,371 passing yards, 19 touchdown passes, and 15 interceptions. He also has lost four fumbles.