I don't know about Weah as a starter. Maybe someday, but I haven't seen enough out of him to say he's absolutely a first 11 player now (although his pass that set up Wood against Colombia was excellent). If you want to play two up top, you've got Weah, Wood, Jozy and Sargent to choose from, and maybe a few others (Aron Jo., Sapong, Dwyer, Zardes, Nova, and even Carleton with Atl. U.). If you want to play him as a wide midfielder, he's competing with Pulisic, Green, Zardes, Picault, Arriola, Aron Jo., Fabian Johnson, maybe even Nagbe. One of those players could end up in the middle, but still, if we were playing a game that mattered, I don't know that Weah would be one of our top two wide midfielders or forwards.
And as much as I like Parker and Long, they're great in MLS but unknown at the international level. I would definitely like to see them get a shot, but there's no way I can say they are better than Brooks or CCV right now. It would be pretty cool seeing an all-RBNY center of defense with Parker, Long and Miazga, though.