The owners of the 49ers, John and Jed York, privately expressed displeasure about coach Mike Singletary following the team's sixth loss in seven games on Sunday, according to a team source. "There were some grumbles from the owners about bad coaching," the source said, according to a report by CSNBayArea.com. Singletary was signed to a four-year contract after guiding the 49ers to a 5-4 finish in 2008 as the interim coach.