There are of course exceptions to every rule, and I'm sure some companies have been successful in building their own in-house tooling. At the end of the day th

There are of course exceptions to every rule, and I'm sure some companies have been successful in building their own in-house tooling. At the end of the day these decisions are all series of trade-offs, and the trick is understanding your requirements and capabilities well enough to make the right trade-offs.