Your survival stats is way too low. For starters, replace your gems with vit gems. Your damage seems already good enough (thanks for the sick skorn you've got there) you probably could lose a bit of it for survival (You do more damage being alive afterall).
I'm not a big fan with WotB. I feel that rend crit does enough burst to kill the elites without the need of extra cooldown ability. Tips on rend is to rend once and wait to see if it crits on the first tick. If it doesn't then keep refreshing until it does. Once crit just whack away and everything should die in no time. I feel that the survival and armor granted by leap worth a lot more than a burst ability that you can perhaps use every 3 elite packs.
However, if you really want burst potentials, maybe give EQ a try. It has higher burst damage and shorter cooldown.
Quote from DSTiamat
WW doesnt work that well with 2-H, and why use WW/Run like the Wind when Charge/Marathon would be even faster, its not about whats similar but whats better/faster.WOTB+Marathon is 70% move speed permanently, rushing from one pack to another is a piece of cake.
WW actually works equally well for 2h. The real problem with ww build and 2h is actually the attack speed means run like the wind won't proc quite as often, so you can't abuse LoH as much as you would on fast weapon.
WotB and Sprint speed bonus do not stack. And you will not be having WotB up permanently. You can give this a try yourself.