I don't agree with:
a) Ylonen blocking the way for anyone right now. He has yet to show enough offensive ability to be considered a legit blue chip prospect and future top 6 NHL player. That could change if he begins to torch the Finnish league, but right now no one's making any plans for the NHL roster around him.
b) Suzuki at RW. He looked lost at the WJC and forgettable in many of his games on the RW in Junior. He's not a very explosive skater from a standstill, has mediocre strength and puck protection along the boards and doesn't play with enough intensity to have an effect on the forecheck. It also takes away from his best assets in his hockey IQ and spatial awareness. He's at his best as the third man in the zone, anticipating and reading plays as they happen. Which he most effectively displays as a C.
c) That Caufield being the most pure shooter means he's the best candidate to play LW. Have you considered that his best asset, the ability to "get lost" in the offensive zone and find open spaces on the left side, may come from his movement from the RW across to the other side of the ice? Again, most of those elite shooters who play their off wing have underwhelming even strength production and are very predictable IMO.
For the record, none of them should be a LW. But if I had to move one to LW it would be Suzuki. He's the most creative and dynamic threat of them all, has incredible hands and one-on-one ability and plays a slower tempo game that can suit the off wing. However, he lacks the lateral agility to create separation from defenders consistently and, of course, has no experience on the LW. Again, I much prefer him as a C.
But at least you're now making an argument rather than a one line response like "just watch".