Here is an excerpt from an article written by Steve Tobak for BNET, The CBS Interactive Business Network. To check out the article and an abundance of other resources as swell as obtain a free subscription to one or more of the BNET newsletters, please click here.

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There are as many management theories as there are management gurus, academics, and bloggers. And since theories – true or not – have a tendency to stick around, well, that means there are lots of myths.

Management isn’t a science; it’s an art. It involves millions of people in thousands of organizations, each of which is unique. That’s what makes it so subjective, by definition. Sure, certain innovative management concepts become the rule, but they’re rare, that’s for sure.

These management myths aren’t just the most common, they’re also some of the most mythical and therefore easy to debunk. And one thing successful managers have in common is that they don’t drink the Kool-Aid or buy into BS fads. So, if you aspire to be a successful manager, don’t buy these:

[Here are three of the ten. To read the complete article, please click here.]

1. Bad managers are a bad thing. It’s ironic that society is okay with bad spouses, bad marriages, bad workers, bad professionals – hell, bad people – but not bad bosses. Listen carefully: there’s a bell curve for all things involving people. It’s reality; it can never and will never change. Deal with it.

2. It’s not what you know but who you know. Ah, the mantra of the perpetual underachiever, the assumption being that because he can’t get a promotion it means the guy who did must know somebody. The truth is that overachievers work harder and yes, they schmooze harder too. That’s why they know more successful people and are therefore exposed to more opportunities.

3. It’s the path to big bucks. For the vast majority, that’s simply not the case. There’s at least as good a chance that you’ll hit the jackpot as a professional, individual contributor, or entrepreneur. That’s because the big bucks are in a thin sliver of executive management and few managers ever get there.

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Steve Tobak is a consultant, writer, and former senior executive with more than 20 years of experience in the technology industry. He’s the managing partner of Invisor Consulting, a Silicon Valley-based firm that provides strategic consulting, executive coaching, and speaking services to CEOs and management teams of small-to-mid-sized companies. Find out more at www.invisor.net and follow him on Twitter or Facebook.