Mam is a runner and Duffy is an organiser, so on the surface the combination is promising. "It's obviously something I look forward to improving over the off-season and hopefully having a stronger season with my defence next year." The Broncos dynamo is capable of big defensive efforts, as he showcased in last year's grand-final win over Melbourne when he came off the bench and made an immediate impact with his clout. Attempting the big shot can be a hit-and-miss affair, but Mam's misses are not from any lack of desire. "I took (being demoted) on the chin and went about my work and found myself back in the team.