This depends on the level of athlete. For people over 10.5 or 11.0, ability to push CNS level is less and the corresponding recovery period is less.
But what you see once you get much below 10.5 (or just to get there) is that what you used to do doesn’t work so well any more, and you need to arrange for more recovery. Your conditioning is such that you can handle a much larger volume of submax than people sprinting slower, but once near top shape you really can’t push the envelope more than once a week if you want to keep improving. Everything else is submax.