Yes you can change your name its called a "Rename Card" and it should be in your inventory, at least i think as mine appeared out of nowhere.

Onto your team, my current lineup is, Main Char, Naruto, Sasuke and Sakura with the same team formation you are using with Naruto and Sasuke at the front with Sakura and main character at the back but of course you should experiment with your own team comps because your style of play might be different then mine. It took me a couple days to get my team comp sorted but its worth it in the end so just have fun with it! Hope this helps man!:)

Thanks mate !

Try: Hinata, Karin, Wind mc and Kurenai..

Kurenai Wind MC Hinata
Karin x x
x x x

buff all females and use the flower shield passive with big rasengan.

I would do Naruto Hinta Karin and Mc use flower guard giant Rasengan wind style gale fan vacuum blast barrage queen momentum

you c*so use temari in exchange for guy.