The Raiders' past three games showed Las Vegas' stagnant offense wasn't all Josh McDaniels' fault and at the same time almost entirely his doing. Las Vegas' in-game coaching and preparation haven't improved and, in fact, have dramatically regressed during its three-game skid. Most glaring, the Raiders (5-8) don't have a franchise quarterback, and whether rookie Aidan O'Connell even starts Thursday night's home game against the Los Angeles Chargers is in question.