Grow the Core Marketing Director Survey: what do you think?

Every year we do a marketing director survey on an important topic. In past years we've covered brand leadership, turbo charging marketing plans and recession-proof branding.
This year it may be no surprise to regular readers that the topic we are researching is growing the core. We want to better udnerstand the importance, benefits and challenges of growing the core, relative to innovation that stretches brands into new markets. 
So, please do take 5" to complete the survey by clicking here: http://www.surveymonkey.com/s/H8CWGN5