He certainly alternated between first and second receiver - as all good halves do - but that's irrelevant. I think a lot of fans just have a way more rigid view of positions than what actually happens on the field. It's a division of labour, and it's different for every coach.
If one of your guys happens to be a game-manager with a small trick bag (e.g. Townsend, Robson, Sezer, Fogerty) you just divide the labour differently than you would otherwise. I certainly think it would be a mistake to have 2 guys like that, but that doesn't mean that the minimum is 1. Melbourne have 2 fullbacks in their halves and that seem to working out fine for them. The Roosters have 2 guys you'd probably describe as textbook five-eighths, and that works well because they have their lock do some of the micromanagement. For the Sharks, there seems to be a good division of labour across the 6, 9 and 13 for most things. The team definitely needs another kicking option though.
Probably the hardest thing is having your dynamic attacking player involved enough in the simple "get through your sets" stuff so he stays involved, but not bogging him down with too much. It's a really hard balance to find. When you have a player who is one of the best at both throwing passes and running on to them, you want him doing both those things consistently, but neither of them so much that he can't do the other.
