Not much hard data to support conclusions but because we are an up/out organization many of us suspect it’s the 2nd/3rd order consequence of under funding an entire generation of pilots. During sequestration we had pilots flying hours at the bare minimum of safety. Those pilots eventually moved on to be IPs and then field grade Majors/LCDRs. Though all “qualified” their body of work and experience is not equal to their predecessors. It’s not uncommon for Commanding Officers to only have 1500-2000 hours of flight time now but when I started out - 300 hours per year was a good target....now it’s 100-150 averaged over 15 years.