You know search customers are more valuable with their higher tickets and conversion rates. So provide them with the best search results possible. Merchandise those results with all the best practices in your arsenal. And help more customers search by giving the search box the attention it deserves.
To hire the correct amount of order pickers, packers, and shippers you need to understand two things: Product demand/sales forecast, and how many orders your warehouse can ship per labor hour. Using these metrics, you can determine how many people you need to get all the orders out the door on time. Then you just need to hire those quality applicants.
Read any etailing trade publication or talk with any marketing consultant and you will quickly believe that you need a mobile website, yesterday. But not every retailer will benefit from a mobile site. Here is an example of how a mobile-optimized website was awesome at one company and simply not needed at another.