Job rotation is the new normal. The combined average tenure at Amazon, Apple, and Google is 1.36 years; the average employee age, 30.6 years. Not too long ago, seeing more than three jobs on a resume before you were 30 was a huge red flag. Now it's generally expected, and depending on the career path, even considered a badge of honor.

Right now, 73 percent of the full-time work force is thinking about finding another job. With more job change comes more interviews and more chances to regret a decision. But before you find yourself searching for something to blame after the fact -- the culture, the boss, the team, the money -- take it upon yourself to look for the early signs that you should walk away.

Here are the 5 signs you should walk away before the interview even starts.

They offer a vague look at life as an employee.

I'm impressed by the number of employers who are taking the time to explain what it's really like to work at their company and what type of employee will thrive there. For example, Delta Air Lines provides a very candid look at life as a flight attendant as part of its recruiting process. It's not as glamorous a job as some may think. If your potential employer isn't being transparent and encouraging you to self select in or out, based on how you personally align with what the company stands for and what the job truly is, it's a sign that they aren't proud of their culture. Walk.

They fail your background check.

Just like a potential employer performs a background check on you, it's your responsibility to conduct some digital due diligence on them. If your deep dive on Glassdoor reveals an uninspiring culture, poor management style, and an overall dissatisfaction with compensation, walk. If your research on LinkedIn flags stalled career paths and revolving turnover, it's another sign.

Your non-negotiables are getting negotiated.

It's easy to romanticize things like long hours or extra travel during the interview process. Most bosses undersell reality, and most enthusiastic candidates underestimate the potential for burnout. Hours, compensation, "balance," and professional career value are some of the right places to architect a forced choice. Be brutally honest when you define your non-negotiables and if you find them getting negotiated, it's a sign to walk away.

The boss blows the interview.

The interview is your chance to see the unscripted truth in real time. My favorite question to ask is "How will I know what's expected of me in this role week to week?". The answer signals how your boss likes to communicate, what level of feedback you can reasonably expect, and (hopefully) how your role contributes to the success of the team. The answer to this one might be the biggest sign of all since 50 percent of employees leave a bad manager.

Current or former employees aren't raging fans.

Gallup confirms that 70 percent of employees are disengaged on the job. When you are interviewing current or former employees, ask these two questions and pay attention to the answers: Why would you (do you) work here, and why would you (did you) leave? If you're hearing vague, passionless answers, it could indicate a weak culture, a terrible boss, or a confrontational team environment. Run.

Bottom line: Honesty on both sides of the hiring equation is the only way to prevent regrets. You owe it to yourself to watch to for signs that indicate a good or bad cultural fit. Increasingly employers are stepping up by delivering a transparent view of company culture and the roles they are hiring for. In return, you should be transparent about the give and take required to be successful. The most serious employers are even using technology like HireVue to understand your true potential and passion because faking it on either side is just a sign of desperation.