You would think that if you were a product manager at one of the world’s  largest retail companies, getting into a new line of business would not  be all that hard to do. 

I mean your company has deep pockets and can  probably spend a lot of money to do whatever everyone else in this new  market is doing. The result isn’t if you are going to be successful,  it’s really more a question of just how successful you are going to be.  

As Walmart has gotten into the home grocery delivery business, their  product managers have discovered that even being big may not be enough to ensure that they will be a success.