Go for manual SEO only, SEO software are not worth
Both on-page and off-page factors play important roles in SEO, you can not ignore any one
It is okay, but try to get title before ID
There are various ways but recent Google Panda update has stopped giving importance to links from blog commenting and such spammy techniques. Now...
Google PANDA makes sure that you get weightage from quality links only. You should focus on contextual links basically through effective content...
You can check the same through Google Analytics/Webmaster, Google Ad Preview or can use tools like SEMRush
Google Adwords Keyword Tool....I think its most reliable and useful if you use it with exact search field
I would also suggest a consolidated website where you can add various teams and their merchandise. The main benefit will be your overall marketing...
Do some promotion for the same through bookmarking, facebook, twitter and mutaully liking other lens
As soon as your new title get indexed your old title will have no role to paly
Separate names with a comma.