...but some things are the responsibility of the people who do the job, like professionalism and keeping up their knowledge.

My wife's company, a large company with 5000+ employees, has an IT team labeled "The Helpless Desk" due to their inability to actually solve problems. My wife's computer had a loose video card that slowly worked it's way loose, causing sporadic hangs and blue screens and ironically cursor distortion. Do you want to know what they replaced first? The monitor cables. Yup, the monitor cables had to be causing BSODs and Hangs. Sweet Merlin where do they find these people? Finally after them closing multiple tickets with no resolution she had me come in on a weekend and in 5 minutes I had reseated the card and it worked fine afterwards.

Yes, this can be blamed on management as well due to budgetary constraints, but these people are highly paid and it's disappointing to see such lack of performance out of people who are well compensated for their positions.