There’s nothing that impresses me more than staying power among Hollywood players, none more so than talent agents because that’s such a brutal biz. So today Toni Howard celebrates her 20th year at ICM. (I recall the newsmaking day she led a group of fellow female talent agents who weren’t being treated well at the old William Morris Agency to defect to ICM.) “They made a very nice celebration and Jeff Berg made a beautiful speech,” an insider tells me.