Getty Las Vegas Raiders owner Mark Davis. The Las Vegas Raiders are no strangers to changing coaching and front office regimes. The team can’t seem to find long-term solutions at head coach or general manager. Since owner Mark Davis took over the team in 2011, he has hired five different general managers and six different head coaches. That’s not even mentioning interim head coaches and general managers. With the hiring of Pete Carroll as head coach and John Spytek as general manager this