I will say, in this case it is not what happened. The previous system launched successfully with an incorrect schema. The platform grew and when it came time to

I will say, in this case it is not what happened. The previous system launched successfully with an incorrect schema. The platform grew and when it came time to add more features, some of them were either impossible to do because of the incorrect schema, or they would have been so complex to implement that the system would have fallen apart. Needless to say, the schema needed to be corrected, but the wrong schema was already baked in all across the platform. So it's not like the main developer handed something off that was unfinished. They handed something off that was finished but wrong. And because of that we had to replace the engine while in flight, so to speak.