Speculation has been rampant for weeks that there will be major turnover on the Minnesota Vikings’ coaching staff, that Leslie Frazier will need to revamp his defensive assistants. What will be interesting to see is if Frazier’s teammate with the Chicago Bears, Mike Singletary, is impacted. Singletary transitioned from being the head coach of the San Francisco 49ers to joining the Vikings as linebackers coach and there are rumblings in the Twin Cities that his first season there didn’t go well. Tom Pelissero of ESPN 1500 report that concerns about Singletary’s “preparation has raised red flags.†Singletary has designated assistant Jeff Imamura to run position meetings, missed meetings the night before a game at Detroit to attend a wedding and “has occupied himself much of the season with side projects instead of the next opponent.†Source: National Football Post