The very biggest thing that meets my eye is that the Oilers look slower. And all you have to do to figure out how this happened is to consider four departed players from the Stanley Cup Final roster.
Warren Foegele was never able to cement himself as a Top 6 forward in Edmonton but he could skate. Like Foegele,
Dylan Holloway had not yet proven himself a Top 6 performer but he could flat out fly.
Ryan McLeod was perhaps the fastest Oiler not named McDavid. And
Philip Broberg on Defence was a terrific skater who in a small NHL sample could transport the puck.