I don't think there should be a review team, in my own opinion it's completely pointless, when i looked at .com's reviews they didn't sway my decisions on games in the least. The reason for this is because take Homefront for example, nearly everybody i know barring a few exceptions hated that game yet i loved it so one persons opinion on a game shouldn't make up your mind for you or influence you in any way as everyone has different tastes in games.
As for trophy teams, i don't really have an opinion on them except i don't feel you should need a team for something i feel 1 or 2 commited people could do themselves.
News teams can be very handy as i really did enjoy the news updates on .com at times, they can provide a lot of useful information on anything PS3 related saving users the bother of going around the internet and raking for it themselves.
All i can say is keep it simple, remember 'less is more' and hopefully then it won't turn into a total break down of communication between everyone here like it has with other sites. I personally think Sly has done an incredible job designing & updating this site constantly and would love to see it flourish in the future.