That's 7 players off the top of my head from 2003 to 2017. If there's nobody else, that's about 1 every other year. The more darts the better. As you say, it's too early to judge Evans and Primeau, so it's too early to judge this era.
If we're going to compete next year, as is the stated plan, Cousins doesn't make my top 12. Lehkonen and Byron should be on the 4th line and we need to find two skilled wingers (e.g. Kovalchuk and Hoffman) to play with Domi. KK, Poehling, and Fleury should get a full year of development in Laval.