We're less than four weeks away from Selection Sunday, and some teams considered locks in the preseason for March Madness will let their dancing shoes gather dust.

While teams like Miami (Ohio), Saint Louis, Clemson and Virginia have been surprises, plenty of men's basketball teams have gone splat this season.

Here's a look at 10 schools who have disappointed this year, including one already looking for a new coach and a few bluebloods who have fans nervous.

Bracketology: Check out latest March Madness projection

Ranked just outside the preseason coaches poll (received second-most votes outside top 25), the Ducks have been a disaster this season. Losing All-Big Ten guard Jackson Shelstad to a season-ending injury didn't help, but Oregon was already just 6-6 when he went down.