To add. It is hard to get funding for technical debt. Senior management are typically not aware (don't care) that a system is only working because some poor soul wakes up at night to clear caches. Sometimes I feel you might be better off letting the system have a spectacular crash than keeping system on life support. The trouble with letting system crash is may be a career limiting. Technical debt is complicated. Take companies that pay overtime to employees that get called at night to fix the system. They may not exactly be keen to have the calls stop.