OK, I get that cumulative seasons can skew the performance.
But I do that because Krueger is a terrible coach.
Miller, Montour, Hutton, Sheary, Rodrigues, Vesey, Okposo and of course Skinner ALL had career worse seasons.
Vesey, Johansson, Miller, Jokiharju and Montour for an entire season were added and yet Krueger still managed to lead the Sabres to a worse season than last year.
If we only look at last year, yup Miller, Montour, Vesey and especially Skinner are near worthless.
But if you look at their previous year, they are very valuable.
So yes, a 3 year cumulative is necessay.