IT in many libraries is heavily underinvested, both in pay and infrastructure. So, you have too few, average or below-average workers, annoyed with constant struggle with old software / hardware (plus standard IT support problems, like workers resetting their computers by turning the screen of and on again).

Woops, a disk in our 9-year-old array just died. Let me fill that form for financial director, and explain we really do need to buy a new one. Pray so that spare disk won't die in the meantime. "No, we cannot buy a cheaper one". What, new server? We just bought you a brand new expensive hard drive 6 months ago!