Bottom post of the previous page:
Well, Prost is unusual in that regard. From 1981-1985 he had 15 poles (and 21 wins). Then he got Senna as a teammate and competitor, arguably the greatest qualifier in F1. From 1986-1991 he had 5 poles (and 23 wins). Then in his last year in F1 he got 13 poles and only 7 wins.
Of course, qualifying is not the end all and be all of driver performance, but when I see Schumacher has 0 poles and Ilott has 6, it does make me wonder. Career-wise, Schumacher's six-year junior career shows 26 wins, 17 poles and 18 fastest laps. Callum Ilott 6-year junior career has 13 wins, 21 poles, 15 fastest laps. Yuki Tsunoda 5-year junior career shows 16 wins, 16 poles and 12 fastest laps.
My suspicion is that M. Schumacher is very well trained and developed, but may not be the next Hamilton/Verstappen.