Club Boss was a game mode that was first introduced in PES 2012, and yet omitted in PES 2013. It is an unlockable and must be bought for 100 PES Points. It differs from Master League as you take up the role of the chairman of your club in where your aim is to make as much money as possible. Instead of being able to change tactics, you take a step back from that role and aim to build the most successful, profitable club, while being able to hire/fire your manager.
 What is Club Boss?
In this mode, you take on the challenges of being the owner of a Club.
Team matters such as tactics and signing players will be left to the manager you hire, but you can always try to influence things by using your patron's rights to intervene if you don't like what he is doing.
As Chairman you also have access to personal wealth which can be used to push through Star Signings or to boost your Marketing Budget.
 PES 2012
The first task is to set your financial structure for the year: choose the funds available for both transfers and marketing purposes. The importance is to plan carefully – it’s all effectively taken from your personal account, then ploughed straight into the club. The amount you have at your disposal, as you’d expect, determines the quality of players your manager will try to sign – and the size of your fan club/gate receipts respectively.
You also have the option to overrule or even cancelling the manager’s potential signings, and then replace them with your own – furthermore, if the target is someone that you’d really like to see at your club, you can invest a little bit more from your personal piggy bank.
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