(Reuters) - Doug Marrone has resigned as head coach of the Buffalo Bills, the National Football League team announced on Wednesday.
Marrone departs just three days after guiding the Bills to their best season in a decade. They finished the regular season with a 9-7 record.
"Doug Marrone informed me late today that he has decided to exercise the option clause in his contract and relinquish his responsibilities as our head coach," Buffalo owner Terry Pegula said in a statement.
"We are disappointed that Coach Marrone will no longer be an important part of our organization."
(Reporting by Andrew Both in Cary, North Carolina; Editing by Mark Lamport-Stokes)