Team 7 vs Hokages

[TRE MERCER]

A barrier would not be a barrier if one could just run up the wall and jump out of the top.

They could still warp out. Plus they haven't shown that they can make a barrier with the top closed.

 

[Unorthodox]

A barrier would not be a barrier if one could just run up the wall and jump out of the top.

The barrier has a gapen hole at the top of it

 

[Dark Riku]

Actually now that i think about it Sakura and Kakashi aren't even needed.Naruto and Sasuke can kill the Hokage by themselves since none of the Hokage can counter their attacks.Naruto and Sasuke obliterates them.

 

[xKiD SPiiD3rMaN]

If they erected a barrier it could potentially be the worst thing to do since they would be sitting ducks, ready to get kamui'd by Kakashi, regardless of if he is inside the barrier or outside of it.