The Definitive Guide to Business with Marcus Lemonis

Marcus Lemonis: The No. 1 way to ensure that your next hire is a great one

Self-made millionaire Marcus Lemonis: Here's how to avoid hiring a BS artist as your next employee

As the host of CNBC's "The Profit," Marcus Lemonis knows how to differentiate between the sincere and the self-serving.

"I have a good bulls--t meter," says Lemonis. "Maybe because years ago I used to bulls--t people, and so I know what it looks like."

He says the best way to determine if a candidate is the type of person you want on your team is to put them to the test.

Michael Nagle/Bloomberg | Getty Images

"When you go into working with somebody, you have to really decipher very quickly whether you think they can execute or not," says Lemonis.

While it may be more complicated than the usual hiring routine of reviewing someone's resume and bringing them in for an interview, Lemonis emphasizes that it's important to create the opportunity to see someone carry out tasks associated with the job, either by interacting with them in the field, or by creating a test you incorporate into the interview process.

Alternatively, you could consider building a trial period into a hiring agreement, which will allow you to evaluate how well an individual contributes to your team. A trial period also allows the candidate to decide if the role is a good fit for them.

You want to see people roll up their sleeves and just go to work.
Marcus Lemonis
host of CNBC's "The Profit"

"You have to actually let them do their job," says Lemonis. "Give them simple tasks where you can see them execute, see if they're good at the details. Are they good at organization? Are they good at communicating? Are they good at working with others and do they actually focus on performing, as opposed to talking?"

That last point, Lemonis insists, is essential: The best addition to your team is someone who's going to reliably get things done, as opposed to making promises.

"At the end of the day," he says, "you want to see people roll up their sleeves and just go to work and stop talking so much about it."

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