i never thought i'd quote happy gilmore here but there's a scene where the pro golfers are trying to give him advice and he cuts them off and says "whoa you're confusing me. just let me put the ball in the hole."
if you're a small team, just make the best possible product. don't spread yourself too thin.
Once you have this product how do you get users to come to use it? How do you keep users coming back? How do you make money from it. There are questions beyond making the best possible core product.
if you're a small team, just make the best possible product. don't spread yourself too thin.