Production issues in car manufacturing can be solved by adding more resources just like adding more programmers to a software project can. Nope, not at all.
Valve surely has a lot of developement issues leading to delays, but they still got Half Life 2 out and made a bunch of money off of it.
But many side effects of delays are mitigated by throwing money at it. And spending money is usually an easy option, if you have a lot of it.