I understand the importance and differentials between the two, but have they always been so strict?
I see so many people talk about how stupid some people are suggesting RCB’s to play LCB and vice versa, but I can’t remember previous generations being so limited, though perhaps that’s due to the lesser responsibility on ball playing duties?
It’s probably increased as the expectation on centre backs to be able to pass out from the back as increased. You’ve always had centre backs who’re good passers, but it’s a more important part of the modern game. So CBs who’re on the “wrong” side are slightly disadvantaged in that their passing range is a little reduced.
Wasn’t so much of an issue in the past where CBs were typically expected to just win headers and tackles and either launch the ball up the pitch or play a very simple pass in possession.