My thoughts:
Necas is an offensive dynamo, a very good playmaker and has great vision. As you touched on, great skater and a lot of his offence comes from off-the-rush chances. Good PPer too, but foremost he loves skating with the puck and gets a lot of his points when he skates circles around everyone else. He does have some engagement issues at times and tries to do too much on the powerplay which prevents him from being perfect. He definitely doesn't have the shooting instinct as Rantanen nor the heaviness in his game, but makes up for it with speed, creativity, and high-calibre offence.
Jack Drury is a solid player, he is a very good two-way third-line player. Has some talent to his name, but also runs into some runts offensively at times. Gets into inconsistent bouts, which prevents him from being any higher on the depth chart. Nonetheless, he battles in the corners well and can create plays with time and space. He's looking to rebound from a very meh year so far, but the work ethic is there and is more talented than the likes of Miles Wood, Ivan Ivan, Parassinen, etc. Picture a bottom six version of Paul Stastny.
