Well Marketing field does require good communication skills as most of the times you would have to meet clients,  attend meetings, sometimes give speeches, etc. 

If you don't have good communication skills then you can always develop them. If you would love to work in marketing area then you can go for it. Don't hold yourselves because of your communication skills because nobody is born with it. You have to talk to people understand what needs to be said and when it is to be said. Communication skills develop with time so give yourselves some time. 

If you still have any queries feel free to ask in the comment section down below.