On that notion, what is your stance on merging broken units to recover 1 unit faster?
Fx if you have two units of Broken Veteran Armsmen, would you be ok with merging them to have 1 unit of Veteran Armsmen with an appropriate cohesion left? - Fx the sum of the two.
In some situations, such as an ongoing war, merging might be more attractive, even if you do "lose" a unit doing it.