Advice on my story, please?

I've just finished a mcript, and the thing I need help with is it was alternating POVs until about 1/3 of the way in until I just stuck with one character's POV the rest of the way. should I go back and rewrite it all in that character's POV or should I leave it the way it is? Or, should I go and rewrite it to include the other alternate character's POV throughout? I'm lost. help