Interesting discussion this; precisely what good writing / journalism is meant to do.
I wanted to touch on the moneyball side of things. Is the general assumption from most that the data isn't yet useful enough to be considered reliable in football? Apologies if I've phrased that poorly.
I've been thinking about it, in terms of centre backs specifically, and stats like tackles attempted per 90, successful tackles per 90 are ones I'd consider useful but not nearly as useful as successful interceptions per 90 because that stat indicates to me that the defence is in a position, more often than not, that means they don't need to make a tackle attempt which has a 50% chance of succeeding or failing.
That’s a good point. A bit like keepers being judged but the number of saves they make when the best keepers organise their defences to prevent shots - Ray Clemence was very good at this. Similarly CBs should not have to make too many last ditch tackles and blocks.