Exeggutor's only use is on sun teams, but it's weak to fire, which is the most potent OU attacking type. Exeggutor's probably stuck in NU for a long time, sorry to say... Don't worry, Entei and Charizard are with it, same for Medicham, so NU isn't the sorry place it used to be. Seems like Froslass is in that UU/BL limbo like it was when I left though, which amuses me, it's sitting on that line and won't move. It's like the line's guard along with Raikou and Gallade.
They should... They need to stop using double team/sheer cold too. The Sheer Cold/Horn Drill/Rest/Sleep Talk Dewgong and Walrein should not exist.
Life Orb isn't worth the recoil in the tower but you can do that, sure. lol