Mrb1p
PRICERSTOPDAPUCK
I think the OP has the rule wrong. You need a 1C and 1D with the exception of if you're missing one, you need two of the other, and the one you're missing, you better have quality depth at that position.
For example, Anaheim when they had no 1C and instead had Pronger and Niedermayer, with MacDonald and a rookie future 1C Getzlaf.
McDonald was a a top 30 C when they won the cup, so it would still apply. They also had Getzlaf who played c/rw put up almost a ppg and never look back after that, plus Pahlsson who might have produced the best performance for a 3C the league ever saw.