Prospective hires can be really savvy at hiding their weaknesses. But just because someone is good at getting a job, doesn’t mean he’ll be good at doing the job. Being able to weed out the weak applicants sooner can help save time, energy and resources down the line. In the latest Mediabistro feature, workplace experts give tips on how you can spot red flags quickly. Here’s one warning sign:

No. 3: Being Short on Details

Jon Tucker, senior strategist at Compete Marketing Group, an online marketing agency, cautions managers not to treat resumes as gospel. “Just because someone says they’re good at something on their resume doesn’t mean it’s true,” he said. “By conducting action-based interviews — where you have candidates go through real-life scenarios regarding tasks they performed — you can quickly weed out the best from the rest.”

“Hiring managers need to focus on the actual results someone achieved in a role and drill down on how they achieved them,” said Duffy. “If the person can’t answer with specifics, that’s a huge red flag.”

For more, read 8 Warning Signs of a Bad Job Candidate. [Mediabistro AvantGuild subscription required]