He has a plan , true. But , if he's smart like a lot of us agree , he buys low and sells high. It takes time to get this huge company pointed in the right direction.
Just my opinion: I think Jacobs has a long term goal of going after small package/parcels. The two dominant players are just too strong and well established to try and compete with directly. So , you nibble all around their core business , all the while setting up your pieces and infrastructure you need to go into small package/parcel.
He's not an idiot. He's aware of what happened to DHL in the U.S. - If he wants to prime this collection of companies and sell them , it would have to be attractive to the biggest deep pockets. XPO already has a business relationship with Amazon. And like it's already been pointed out , drones can't carry everything ( unless they're the size of Chinook Helicopters ) UPS and FedEx are all about removing competition - buy up the competition , move into the competitions space and drive them out , undercut competition on price.
So if Jacobs wants to sell and make a HUGE profit XPO Logistics will have to be shaped up and make some waves throughout the transportation industry.