The game is constantly evolving and always will, I guess.
There is no substitute for pace, power or the ability to jink through a defence though, and in a physical, collision sport like RL there is still a place for all three. Even though many of the skills we took for granted a few years ago are no longer relevant (or represented on the field, other than by positional names), we could no more get by with a team of just speedsters or jinkers than we could with a team stuffed with just brawn.
Think of it as being a bit like the scissors, paper rock game; there is always a situation where each is top dog!