Where do your stats come from because they don't match what Fbref have using Statsbomb's data, nor do they match WhoScored using Opta's data ?
Why are you using per game, instead of per 90 mins ? McTominay coming on as a sub in the last few mins to protect a one goal lead, as happened this season against West Brom, Sheff United, Wolves, Burnley and Fulham, makes per game stats almost totally meaningless. Donny van de Beek makes 12 accurate passes per game in the PL this season but 42.1 on a per 90 mins basis.
On WhoScored, select the detailed option then choose per 90 mins.
Here are the appropriate links:
https://fbref.com/en/players/d93c2511/Scott-McTominay
https://www.whoscored.com/Players/336915/Show/Scott-McTominay
Firstly, I have only gone for PL stats. The majority of the games are made up of them, so I think it is the best for determining the use of a player. Cup competitions are alright, but they can have very weak opposition or you can be knocked out of them at any stage. With the PL, you have to play every game every season, so it just makes sense to me.
Secondly, I prefer to go for non-sub games myself as it gives a clearer picture of how they are over a longer period of time and ignore games that are already won. So, I haven't actually included sub games in the stats. Burnley etc. were so short there is no point.
But I have tried with 90 minutes and sub appearances and it doesn't make a lot of difference. He will be 45th in passes per 90 minutes. I have only included those that have played more than 8 full games.
Fred - 65.4 passes per 90 minutes (22nd)
Pogba - 71.2 passes per 90 minutes (16th)
McTominay - 51.2 passes per 90 minutes (45th)
Without sub appearances (pretty much comparing first-team midfielders below), he ranks 29th.
Fred - 66 passes per 90 minutes (12th)
Pogba - 71.6 passes per 90 minutes (8th)
McTominay - 51.3 passes per 90 minutes (29th) - out of 50
The differences are very similar. A 15 pass difference exists in both cases between Fred and McTominay, and he still ranks in the same spot as he did before.
Long ball accuracy won't be impacted as it is based on total long balls, anyway.
Overall, I think it confirms that he is lacking compared to the level of the midfielder we actually need. I mean people might think 15 fewer passes than Fred per match isn't much, but it does come to 570 less if they played every game in the season.
And, any data themselves without context are meaningless.
Without context, yes, but you can build a pattern with stats. Now, if Pogba, Fred, and Matic were doing little better in terms of accuracy and number of passes, you would have to question whether other areas are causing the problems. But when the stats of one player amongst four stands out like a sore thumb, the likelihood is that the issue lies with that player. McTominay is the anomaly here.
I'm not saying he doesn't have a use, by the way, just that he isn't first-team material. If we want to sustain Premier League challenges and actually threaten in the CL, I would say he needs to be changed.