Mainframes are only reliable because companies stopped making changes to them. It's just too hard to find experienced talent to add new features let along trou

Mainframes are only reliable because companies stopped making changes to them. It's just too hard to find experienced talent to add new features let along troubleshoot complex issues. I work for a large bank and one thing is for sure that everyone wants to move away from mainframes but it's just such a perilous journey.