[Mc_Big_G]

One of my previous employers had let each new incoming VP of engineering use whatever he wanted to build out new parts of the app. With the high turnover rate they had, the app turned into the worst Frankenapp piece of crap imaginable. Significant portions of the app were built in php, java, python, javascript, perl, ruby, ruby on rails, mysql, sybase, and a few more I'm forgetting.

The result was that changing the title on the homepage took two weeks of manual regression testing and it took a new developer a minimum of two weeks to get a development instance up and running. I felt so sorry for the Ops guys, I can't even imagine how terrible it was for them. There was no one, ops or dev, that knew even 25% of how the whole system worked. It always felt like the leaning tower of pisa made toothpicks and popsicle sticks held together with bubble gum and boogers.

The cost to run that Rube Goldberg machine monstrosity ruined what could have been an amazingly profitable business and great place to work. I don't recommend it.