Hmm .. Make Yamato Anbu as your pos2 and replace kushina with kurenai BT for pos4 .. Much better i think ..

He dont think so xD .. wahaha

First, Yamato [Anbu] at pos3 which have the mystery of immobilizing a ninja with chakra drain. Most of the people playing around have their support ninjas positioned as 2nd so with your team given, how will you interrupt Madara5k or Kisame Shark. Second, you are not using Flower Guard which makes your Main Character vulnerable from cc, well for kushina she dont need it since she's immune but for your main, goodluck finding a good round to cast your impetus. Third, Minato Jonin can only evade 1 time and he's not immune, how will you use it if he ever got cc-ed at round 1 .. A lot of problems and vulnerabilities ..