Measuring the success of Lewis in Cincinnati boils down to whether or not you're a glass half-full or half-empty type.
On one hand, the league's second-longest tenured head coach has earned three consecutive trips to the playoffs and logged just three losing seasons in 12 years, while piling up a 90-85-1 record in the regular season.
From another angle, the Bengals have never won a playoff game under Lewis, who's 0-5 in postseason play.
Under the reign of a happy owner, keeping Lewis around is a no-brainer for a playoff-ready squad boasting one of the AFC's most talented rosters. If Lewis can't take that talent deeper into January, however, the onus falls on Brown to find someone who can.