B4F.
Sunk costs.
Well interest repayments are sunk costs,you keep paying them without going anywhere.They will exist whether or not you make money or not.Similar to leasing ie premises,machinery etc,however with machinery or other current assets,they depreciate and can be written off over an agreed period.
However interest repayments can't.Another sunk cost is rent.
As for Vertical integration.Well Man United fans would be against this as they believe that the premier league shouldn't be competitive in other words they should have a monopoly thus their philosophy that they and they only should sign players,How dare anyone else spend money.When they do its ''good business'' when anyone else does...its ridiculed.Its also ''How dare anyone except Manchester United win trophies''.When they win trophies..they are major trophies..when anyone else does..they are worthless.The monopoly shall be Manchester United.If you are not a Manchester United fan..you are scum,Manchester United are the greatest club in the universe because Paul Scholes has ginger hair and Manchester United fans said so.