One team, two roles
Post freight as a shipper and bid as a carrier, with the same employees and permissions.
For freight forwarders
Pass orders on and take them yourself
A company can use both sides: award transport and take on orders with its own fleet.
Both sides in one account
Use your own vehicles
Register your vehicles. For every shipment you see whether it fits. Your own freight never appears in the exchange for you, so you never bid on yourself.
Award subcontracting fairly
Freight you do not haul yourself is tendered transparently and you choose by price and rating.