Business software group Sage is to say goodbye to its Director of Strategy and Corporate Development, David Clayton, in February next year.He had been with the firm since June 2004 and became an executive director in 2007 after which he sat on the Executive Committee.Commenting on his decision, Clayton said: Having helped develop our business priorities and plan to refocus on growth, and with the execution of this plan showing real momentum, I feel it is the right time to step down."Sage is up 3.33% so far this year, over the last five years it has risen 11%.BS