Re: Deep pockets
In the UK, do you use "deep pockets" simply to refer to someone with a lot of money? In the US, we often use it in legal situations - two companies are being sued for something, but even though one company is barely connected with the accident, they are the big, rich company. So you add that second company to the law suit because they have "deep pockets" and can pay, even though the other company, which is small without much money, is more directly connected.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.