Do you really believe that?
You really believe Elanga and McTominay are getting international caps because they are quick and/or strong, and not because they can actually play football as well?
Do you really believe Garnacho is getting minutes off the bench because he's quick only? How about his call up to the fringes of the Argentine squad....just because he's quick?!
There's a reason Levitt is plying his trade at Dundee currently, he is quick also, but unfortunately isn't quite at the grade needed to break through to Uniteds first team.
If anything, I'd say what you are suggesting is actually lazy. You are suggesting Garner isn't getting minutes because he's too technical but not strong or quick enough, blatantly ignoring the fact that Garner has just spent a season in the Championship, a league well known for being far more rambunctious than the Premiership, and didn't look out of place at all.