It's not so much "who cares if you're inefficient" - if you really have found that goldmine then you have to tear into it quickly, because if you slow down to g

It's not so much "who cares if you're inefficient" - if you really have found that goldmine then you have to tear into it quickly, because if you slow down to get that extra efficiency then a faster, less efficient competitor will dig it out from under you.