Most, if not all.

Accountants are typically not Ben Affleck type savants that see patterns and shapes in random numbers. They also tend to enter data into something like Quickbooks, rather than with a marker on the office windows.

FBI agents don't just swoop in and take over the case while shutting out local police who've been handling the case for months.

Forensics can't analyze that blood, urine or sperm sample in real-time while the Sheriff waits on the phone. They also can't analyze that contaminated sample that's been sitting for years waiting for technology to catch up.

Detective work is mostly sitting around and waiting. It's hardly the 007, Mission Impossible lifestyle depicted on screen. The lead detective might never find that elusive clue and crack the case.

Hackers aren't all Twinky eating, paranoid introverts that have servers stacked in their mother’s basement just to snoop on the NSA. They're not all going to hack your mainframe from your database and steal your info with 3 seconds left before connection terminates.

Not all school janitors are secret geniuses full of wisdom and knowledge. Unless you're Matt Damon.