Back in the 60's-80's it was fine to do exercises like behind the neck shoulder presses, upright rows, squats, deadlifts, bent over rows, flat and incline barbell bench and behind the neck pullddowns.
In the 90's the lazy mentality came out and called all of these exercises as dangerous and lifters stopped doing them. They resorted to ideas of just dumbell presses, leg press machines, row machines and hammer strength equipment. The guys in the old days had what seemed to be very dense muslcular phyisques where today they look more blown up than chiselled. Guys like Coleman and Dorian were a hybrid of the old school training vs. New School so they had that solid dense look but also that blown up look mixed in. Then guys like Flex, Jay, Heath etc... have that blown up smooth muscle look and not that dense striated look.
Sure you can blame insulin and GH but today's lazy lifters have forgotten about the exercies that would make them solid and not bloofy fucks.