Please Help, Is a Marketing Degree right for a Wall Street job? How my career might go down the wrong path.

Hello there, I need to your help to solve a relatively big problem that has arisen for me.

Let me quickly set you in the story, I live in London and my principal goal in my life was to be a footballer, or soccer player to my American readers.
I am 22 years old at the moment and should be in my second year of university, However I did not make it into second year.
All I have focus in my life was to train hard and give 110% of myself to make it. Unfortunately, this has not been the case, although I have a lot of capabilities and attributes, luck has not been on my side.

Anyways, I was studying Business Management and Economics but failed the compulsory module to stay in the Business Pathway, People and Organisations. Although I have played football all my life and connected with many different people and socialize a lot in the football environment, I am really not a people person. I have always thought that they are other people for those kind of jobs, people for people. In that module we studied things like how the chain production started and some people like Henry Ford and the Assembly line then in so many case study that we did, all the teacher talked about was MCDONALD'S.

I lost a lot of interest for that module as in every seminar McDonald's always came up as example, not to mention all the assembly line and people under study etc etc was delivered in the lectures.

The course was marked as 50% Coursework and 50% exam, pass rate 40%. I passed the coursework part quite well but the exam was not very good, highest mark, including the retake, was just 29%, although doing the average i could have obtained the 40% they want you to pass each part cleanly.

The university was kind enough to moved me to another programme, Bsc Marketing instead of being programme terminated.

The thing is, aside from football, I have always like Business, I could charge my classmates 50 Euros (when i lived in Spain) for homework, take sweets to school and sell them for a much higher price, charge people to use my foot ball in the public park, even set up my own parking area in an also public space and get the money from the poor unaware drivers...

That was until the age of 16, then I moved to England pursuing my football career, hence my "advanced age" and still have not finished university. I started liking other things and learning new stuff as I was growing up.

Trading, investing, global markets, stock markets... became my other source of "entertaining". it was just what I was doing in my early age but now in the Adult version. I could see myself working in an investment bank or in a finance position or in a trading floor.

However, after the turn of events occurred in my life and my lack of effort due to taking the first year for granted, first year does not count towards final degree here in the UK, do not know about in America, I am afraid a Marketing degree will not take me there.

Upon completion of the Bsc Marketing, I would have two awards, from the Chartered Institute of Marketing and the Professional Diploma in Marketing. it "saves our students at least £1,000 in additional study fees, saves additional study time, and accelerates their career as a qualified marketing professional" as quoted from my university website.

Would any firm, boutique, bank, investment bank, take someone with a Marketing Degree to work in something no marketing related? Something like Analyst, Broker, finance... you know that kind of jobs.

After talking to some other people from my university, they have told me I could move to other two programmes, Business Management and Retail Marketing or Business Management and Entrepreneurship, would it be more suitable to make this change?

The difference comes in the third year and the modules we do in the third year:
Marketing:
-International Marketing.
-Applied Marketing Communications.
-Consumer Behaviour

Business Entrepreneurship:
-Managing Innovation.
-Graduate Enterprise.
-Ethics, Organisations and Society.

Plus three optional in each case.

I have to spend this year as a part time student doing only two modules, Creative Environment and Business Data Analysis. I regret not spending a little more time trying to understand that People and Organisations module.

Please I required you give me your insight in this topic and make the appropriate choice that would take me down the path I really like and not to one I would not enjoy and be very dissatisfied with, it will be a lifelong disappointment for me, just look at how marketing works nowadays, no offence for those who like it.

Thank you very much for you help.
PS: I was told I could change pathways until this Friday 10/10/2014, yeah great help from the university, not time to manoeuvre.

Sorry for the long post.