“Las Vegas Raiders owner Mark Davis has whiffed a handful of times on head coaches and general managers the past 14 years,” Manzano wrote in a Jan. 14 column. “But he didn’t even give coach Antonio Pierce and Tom Telesco a fair shake in firing both after one year.

Two days after firing coach Antonio Pierce on Tuesday ... was the Raiders' fourth general manager hired by Mark Davis since the owner took the reins to the organization in 2011. The team is also preparing to hire its sixth head coach in that same span.