Mar 7, 2021 Tackle Art Shell and guard Gene Upshaw of the Oakland Raiders were not joined at the hip. It only seemed that way. Shell and Upshaw held down the left side of the Raiders line, which is considered by many to the best of all-time, for more than 10 seasons and were the driving force behind the Silver and Black’s first two Super Bowl victories. “The Raiders had a great running team back then and Gene and Art were the reason for it,” said Joe Collier, former defensive coordinator of the Denver Broncos and architect of “The Orange Crush” defense.