Something to consider if Montreal truly picks Kotkaniemi and the fears of developing a center, Gal example and so on.
Julien has had Bergeron& Krejci in Boston, he's seen their development. Kotka is similar to those guys& next year the plan is to play him as a full time C in Finland.
In 2019 development camp Julien could have a 18y full time 6'2 200lbs 2way center to mentor, who is praised for his IQ, just like Bergeron& Krejci.
Julien is very demanding of his younger players(atleast was in Boston), defensive mistakes aren't his favourites, high risk plays aren't his favourites.
Kotka should be the type Julien is willing to be patient with and be at his best.