NHL teams for the most part no longer employ a goon or agitator. In the salary cap era, every single dollar is valuable and allocating cap space to a player with limited ability is bad business. Every roster spot needs to be able to contribute in both ends of the ice.
A player like Jesper Fast is infinitely more valuable to the Rangers than Tanner Glass. However, there is something to be said for the old guard of enforcers like Glass. They didn’t contribute on the score sheet but found ways to change the dynamic of the game.