How so? Doesn't fit your narrative?
First there's the importance (45 mins or more in 2018-19 league games):
Newcastle with Schar: 12 wins, 5 draw, 7 losses (50% win) - 1,70 points per game - 23 goals conceded (0,96 per game)
Newcastle without Schar: 0 wins, 4 draw, 8 losses (0% win) - 0,29 points per game - 25 goals conceded (2,08 per game)
Leicester with Maguire: 10 wins, 4 draw, 15 losses (34% win) - 1,17 points per game - 40 goals conceded (1,38 per game)
Leicester without Maguire: 5 wins, 3 draw, 1 loss (56% win) - 2,00 points per game - 8 goals conceded (0,89 per game)
Then there's the raw stats:
No point doing this year, Newcastle is undefeated and have conceded a total of 8 goals with Schar in the team. Maguire is benched by a side-back.