Execution does Las Vegas wonders in first win of the season For weeks the Las Vegas Raiders coaching staff and players harped on the need to execute the game plan. Do all the little things right and it’ll eventually lead to big things. he Silver & Black were able to do a bit of that this past Sunday and it culminated in a 32-23 victory over the visiting Denver Broncos — the first W in Josh McDaniels’ tenure as Raiders boss. “I thought we had our best week of practice. I thought we had our best week of preparation,” Las…