Nigel Clough’s admission a couple of weeks ago that he still didn’t know his best team was seen as a flaw.
All of a sudden it can be viewed as a strength!
Four wins in a five-match unbeaten run with a series of strategically altered line-ups have kept Sheffield United’s boss guessing in the best possible way.
Of course, there may well be a sudden death scenario at the end of the season when he will have to know the answer.
But for now Clough has established the luxury of several effective permutations and players in key attacking positions jostling for preference.
Beyond the quality that has never been in doubt, hence earlier frustration at results falling short, there seems to be a strong collective resolve.
It needs to prove relentless if United are to keep alive that outside shot at automatic promotion.
In that respect, they are leaning on physical fitness and squad strength in the final lap of a long slog of a season including two cup runs.
The signs are there will be no let up.
Late goals have been a consistent feature which adds to my bafflement at how so many disgruntled supporters missed the ten-man comeback for a 2-2 draw with Coventry last Saturday.
Okay, it was a below-par performance – but surely the leave-earlies should have known better?