Since the beginning of the year I have probably seen 15 different "pitch" decks for new startups. There is definitely an art to building these presentations. Get people excited about the opportunity, explain what the product experience is, and entice people to learn more – that's the mission. Twelve slides should be enough, if you have more – try again, you shouldn't need them all.
Curiously, Entrepreneurs that have had past success sometimes lead with a slide (or it's in the first three slides anyway) about who they are, what an amazing team they have attracted, and a story about their past success. I hate that. To me it seems like a crutch, like – I have this idea, it's a little out there so listen here I know what I'm doing "look who I am". Lame.
I think the "team" slide is the last slide in the deck. If you got the meeting in the first place, why lead with how cool you are? You apparently had enough juice to get the meeting. If you don't get the meeting no one sees the slide anyway.
I suspect I know why entrepreneurs are tempted to do this. It's hard when you first start pitching your new idea, you don't tell the story as well you would like to and you may not have a lot of data on how to get the message across – so the temptation is go for the crutch.
My experience is there is no credibility shortcut in your pitch deck, bury the team slide.