As a drop shipper, you'll need a large warehouse with plenty of stock to ship. Therefore, if anyone doesn't deliver on time and you can't restock your warehouse you'll lose a lot of clients because they are depending on you. To avoid issue only work with companies that can deliver your stock on time. Set up a great inventory system that will alert you when an item is getting low. You can say down to 5 in stock. Make sure that you have a good notification system when a person orders. You need to be notified immediately so that you can box up and ship out ASAP. Make arrangements with the local shippers either UPS, FED EX or another shipper you want to use. You should be able to go online and tell the shipper you have packages to pick up and they should be able to handle this and arrive at a reasonable time to recover your packages. Depending on how large a company you want to open up, you'll need at least 2 to 3 people who can print out the labels, pack the boxes, and enter them in the computer so the truck can pick them up from your warehouse. An automated system is the best to use and it will cost you to purchase a good software that can handle all your needs, such as printing labels, taking orders, alerting you to stock shortages, order stock, checking inventory, and invoicing.