<ul><li>Daniel Lubetzky, founder of snack brand Kind, is joining 'Shark Tank' as the show's newest Shark.</li><li>Lubetzky has spent five seasons as a guest on the show and will now take a permanent seat as a judge.</li><li>He looks for founders who can be honest about their shortcomings and evaluate areas of improvement.</li><li>Lubetzky believes that acknowledging weaknesses and being introspective is valuable for both entrepreneurs and individuals.</li></ul>

Founders should do this surprising thing more often in pitches, Daniel Lubetzky, the newest 'Shark Tank' addition, says

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