With Dickinson just looking at the 3C faceoff question would that really be much of an issue? Over the last few years with how you always see talk about sending prospect x to Horvat's skating coach or sending goalie y to work/improve with Ian Clark, we don't have Malholtra anymore but I feel like faceoffs are something tangible you can work and improve on. I don't know how much of a factor it is purely between age vs NHL experience but usually a players first 3 or so seasons are closer to 40% but as they gain experience they move closer to 50%.
Pettersson for example his progression is: 41.0, 41.8, 45. Henrik Sedin went: 44.1, 47.4, 48.2, 50. Jason Dickinson is coming in a bit older, but going by NHL experience he only has 3 years under his belt and his progression is: 42.9, 43.9, 46.3. Now he's not likely to ever be great at the faceoffs like Malholtra or Beagle but I'd think if the Canucks/player commits to it he should be able to achieve around 50% this season.
Personally I feel like we may start the season with Pettersson/Horvat/Miller at C and Dickinson on the wing, but the moment there's an injury to a scorer Green will need to fall back to a 2 scoring lines and Dickinson as the #3C checking line.