They say that practice makes perfect. It is rare to find someone that is either comfortable, confident, or unwise enough with applying 'direct from the book' solutions into any live environment. Simply put, they're either incredibly aware of what they're doing, or the exact opposite. 

Experience goes hand in hand with what you might find in a book. The experience to gauge, judge, and make a decision to pursue an action. It still requires hands on experience and familiarity with an environment. The most practiced, book-smart individual will still occasionally run into a brick wall and crash a system because of something they were unfamiliar with.

That said...

I am not a "book-smart" individual. Though in the past I had done very well on the SAT's, ACT's, Wonderlic, and even scored an 88 on the ASVAB (the average of those I took it with was 25). I hold to the thought that there is more to someone than what a piece of paper says. When I say I am not book-smart, I mean that in a sense of how I learn new things. 

I learn by practice. I learn by having my hands directly involved, and I learn by direct guidance. Reading something in a book versus seeing something done in front of me are two different worlds. With the book, there's a hundred questions to ask, because the context is "This Book, Not Your Environment," versus seeing something done in environment. Granted I can pour through a thousand page book in a matter of a day or so but that's merely speed--not retention.

There are dozens, if not hundreds of variables that can click into place when one sees something done in person and is sanity checked on their first and second run. I have very rarely seen an environment in which a "right out of the book" has applied directly within context, as that typically means it is the most basic of system setups.

That doesn't mean that I won't read the documentation, read the guidebooks, and gather notes before I go ask questions. What it does mean is that when I field questions, I have already exhausted my search and am still seeking answers locally before calling vendors.  

I am a cautious individual who needs an atmosphere that allows for fast guidance and familiarization for local systems, processes, procedures, guidelines, planning, and local-best-practices. On-boarding is a critical part of the hiring process, particularly when the work is of a highly technical nature.

Throw me in somewhere and tell me "according to your resume you know how to do this," and you'll find me turning in my resignation, because it says to me that you hired a piece of paper, not the human behind it, and made some critical assumptions during the interview process-mainly that I am a psychic.