Take two first choice defenders out through injury and any team is going to be a bit thin in terms of cover from then on. City have coped well enough with two out, if a third or a fourth was out, they'd start to struggle. That's true of anyone.
I don't follow enough teams to argue with this.
I will say, though, that Real Madrid's depth is unmatched - 3 or 4 defensive injuries wouldn't set them back at least if not all to the same position.
But no team in world football can match Madrid's depth, at least at present.
And our depth - as I've pointed out - isn't at all in defense - it's on offense. We have some backup on defense - and we've been fortunate that Delph unexpectedly is coping so well at left back (I didn't foresee this).
Two injuries to fullbacks, or two at center back (well, actually maybe just one b/c Kompany is permanently injured), or one injury at pivot - leaves us in trouble. And Delph hasn't been anywhere near injury free - we may be living on borrowed time there.
Are we a team that's deep enough to challenge for the P/L and C/L? - I hope so - but we're an injury away on defense from putting that to a real test.
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Finally, our ambition under Pep isn't to win the P/L - we've already done that in the recent past - and should wrap up the P/L this year and in most years to come under Pep.
Rather, our ambition is to be the best team in world football - to win the C/L. It would help big time if we could sustain 2 injuries to any defensive position bar goalie. The key to this is having versatile players in our squad, capable of filling in at multiple positions without a huge drop in team performance.