Save any pages for "The Green Hills of Stranglethorn" you get, you'll end up turning it in much later. IF you need bag space, mail them to a bank alt, then mail them back to yourself. They can sit in your mailbox for 29 days, so you can just let them sit while you progress elsewhere.
Accept all the other quests here after they open up.
Turn both this and the tiger mastery in, then get the follow ups.
They're all around this area.
After it's done turn them in. If you're not 31(You won't be if you didn't grind the yetis) grind here. I like to grind here instead of the yetis because yetis are the devil's workshop. You DO need to be 31 though, otherwise you're going to be too low to accept a couple of quests in the next area.
Once you're level 31, hearth to Orgrimmar and fly to the crossroads. Pick up "The Swarm Grows" from the guy who gave you Egg Hunt, then run out west to the guy in the hut who gave you all those centaur quests and accept "Kolkar of Desolace". Then go to Thousand Needles and starct circuit 4.