But its seems your
Chances are...the problem isn't so much that you and your team aren't selling Your Product. It's that nobody is buying it.
Maybe your product is boring. Maybe it is actually worse than your competitors. Maybe the value you are selling is not the type of value people want to buy? More realistic (because you would have analyzed the market for Your Product) the value you are selling isn't the value that triggers that desire in people to buy. Your selling the wrong thing. Look for the thing that people will buy and sell that. This doesn't mean Your Product will change (but maybe it should). It just means that what you sell will be different.