As Russell Martin fielded Ryan Fraser through the middle during Southampton’s 3-1 defeat to rivals Bournemouth, a penny for the thoughts of those who missed out. It certainly wasn’t a show of faith. Adam Armstrong and Cameron Archer dropped to the bench alongside Ben Brereton-Diaz as a 5ft 4ins winger lined up through the middle instead. You can hardly blame Russell Martin for experimenting – what is it they say about doing the same thing again and again and expecting different results? – but as Southampton collapsed down the road at Bournemouth, Martin looked like a man who had got his test t…