Being selected for the captaincy of England is an honour, not a job. As is being selected to play for England itself. It's a simple question: are there better candidates than John Terry for the captaincy of England? Yes, IMO.
> If so should Harry Redknapp also be sacked as Manager of Spurs, even though he has also not yet been found guilty?
No, because that IS a job and to lose your job before being found guilty would be unfair.
News just breaking is that Energy Secretary Chris Huhne is to be charged with perverting the course of justice over allegations he persuaded his wife to accept speeding penalty points on his behalf:
http://www.bbc.co.uk/news/uk-politics-16866127
There is to be an "urgent Cabinet reshuffle", i.e. for the time being Huhne has lost his role as Energy Secretary, but will continue his job as an MP. Very much like John Terry losing his role as England captain, but continuing to play for Chelsea and England ...