As the Chairman of the Professional Footballers Association, Carlisle talks with a mix of glowing pride and frustration. Pride at the unrelenting work which the PFA is doing, and frustration at the lack of recognition that it can sometimes receive. The PFA does, after all, have an awful lot to be proud of.
Although a huge number of men and women are gripped in the tendrils of depression - up to 4% of men and 5% of women according to Samaritans - it can still be a social faux pas for some. A factor of embarrassment can force people to suffer in silence, which in today's society shouldn't be occurring as regularly as it does.