Weve got a specialist left back we spent millions on last year. The whole playing players out of position didnt exactly pay off if memory serves last season. Its not as if hes slotting into a settled defence either, Clyne, Lovren and Gomez will all be new to each other. Its Rodgers being too clever for his own good. I was hoping lessons would have been learnt. Lesson 1 being full backs play at fullback.
That's a hugely simplistic argument. If you're trying to shoehorn a comparison between different situations involving different players that's always going to be the case.
I also disagree that the lesson to be learned is that you never play players our of position. Our most successful part of last season came with a 3-4-2-1 with people like Markovic and Ibe playing wing back, Can at centre - back and Sterling up front.
That's not an argument either for or against playing players out of position. Sometimes it works, sometimes it doesn't. But in Gomez's case he has played full-back plenty of times before and playing young centre - backs at full back is a common way to give them games and one of the more usually successful positional transitions.
But if you can't take each case on its own merits your arguments will be easy to pick apart. And no manager who has a hard and fast rule about never playing people out of position is likely to ever be successful.