While the 2020 NFL draft is still on the horizon, the league's betting market has already begun taking shape -- and oddsmakers believe the New England Patriots are really going to miss Tom Brady.

Caesars Sportsbook released NFL win totals and playoff odds for all 32 teams on Thursday, and one of the biggest surprises was the Patriots opening with a win total of 8.5, the team's lowest since 2003.

"My raw number on the Patriots is less than eight [wins]," Jeff Davis, head oddsmaker at Caesars, told ESPN. "Outside of the secondary, which is one of the best in the league, the rest of their roster I think is one of the worst in the NFL."

The Patriots under Bill Belichick and Brady had been prolific for bettors, covering the spread in 59.6% of games and going 14-3-1 to the over against their win total since 2002.

Other sportsbooks such as MGM, FanDuel and William Hill have New England's win total at 9, while it's as high as 9.5 at DraftKings.

"I'm very much struggling to find this team being a 10-win team," Davis said. "I'm just not buying this team at all. This team will show just how good Belichick and his staff are, compared to some of the other staffs. This might be the year that reality sets in with New England."

The Buffalo Bills have a win total of 9 and are the +100 favorite to win the AFC East at Caesars Sportsbook, with New England at +140. If that held until the start of the regular season, it would be the first time the Patriots weren't favored to win the division since 2003.

Brady's new team, the Tampa Bay Buccaneers, opened with a win total of 9. They haven't made the playoffs since 2007 but are favored (-155 yes, +135 no) to make the postseason.

The Kansas City Chiefs and Baltimore Ravens opened with the two highest win totals at 12 each. Both Kansas City (-1800) and Baltimore (-1100) are prohibitive favorites to reach the postseason. Thanks to a new collective bargaining agreement this offseason, the 2020 NFL season will be the first with 14 total playoff teams (seven from each conference).

"We have the Ravens and Chiefs heads and shoulders above everyone else right now," Davis said.

This is the second time in the past 30 years where two teams have had preseason win totals of at least 12. In 2012, both the Green Bay Packers and New England had win totals of 12. The Patriots pushed at 12-4, the Packers went 11-5, and neither reached the Super Bowl.

The Cleveland Browns, a public betting darling last season, opened with a win total of 8.5 and are favored to miss the playoffs (-165 to miss). Last season, Cleveland was favored to make the postseason but went 6-10, finishing far under its win total of 9.

The NFL draft will shift these odds, as Davis thought the New York Jets were prime for improvement.

"The one team that I upgraded ahead of the draft is the Jets, assuming they draft one of the elite wide receivers," Davis said. "I think that makes them much better, since wide receiver is a position where a rookie can step in and have a big year."

The Jacksonville Jaguars and Washington Redskins have the lowest win totals at 4.5.

ESPN's David Purdum contributed to this report.