I thought it would be intersting to look at the stats for Premier League and Champions League games this season, and compare the fortunes of the team when Pogba starts, and when he doesn't. I excluded domestic cup games because of the likelihood of lower league opposition, and much changed teams, and also because I wanted to focus just on our main priorities.
In order to make the comparison as fair as possible, I also categorised the games into 'very difficult' (i.e. where we would be the outsiders), and the remainder (i.e. where we would probably be favourites). The games I categorised as 'very difficult' are home and away against Liverpool, City, Barcelona, Juventus and PSG, and just the away games against Arsenal, Chelsea and Spurs (so 13 very difficult games in total, all of which have now been played, out of a total of 45 to date). I also worked on the basis of 3 points for a win for all of the games so that I could come up with a points per game figure, and a projection for a 38 game Premier League season (based on 7 very difficult games, and 31 others).
With Pogba:
39 games played - WDL 20-7-12.
10 very difficult games, WDL 2-2-6 - 8pts, averaging 0.80 per game.
29 other games, WDL 18-5-5 - 59 pts, averaging 2.03 per game.
On that basis, a Premier League season with Pogba starting would yield 69 points (68.53, but rounded to the nearest point).
Without Pogba:
6 games played - WDL 3-1-2
3 very difficult games WDL 1-0-2 - 3pts, averaging 1.00 per game.
3 other games, WDL 2-1-0 - 7pts, averaging 2.33 per game.
On that basis, a Premier League season without Pogba would yield 79 points (79.23, but rounded to the nearest point).
Away from points, and with no detailed breakdown, to goals scored and conceded per game: -
With Pogba - scored 61, conceded 51 (1.56 and 1.31 per game respectively).
Without Pogba - scored 12, conceded 10 (2.00 and 1.67 per game respectively).
Looking at all of the stats, it would be hard to make a case for Pogba being a positive influence on the team's performances, or even on the overall creativity of the team (we've scored more per game without him, despite the fact that the games without him have looked tougher). Maybe we have underestimated his defensive contribution (but that difference might also be explained by the fixtures).
To be fair, I acknowledge that 6 games is a very small sample size for the 'without Pogba' stats (and that I would have been quite happy to have had a larger number to work with).