Naylor chooses to start that sentence with and as a stylistic device. He maintains the short sentence structure throughout the letter. Nothing wrong with that.
That's one of those 'rules' that is taught to kids because teachers want a simple way of showing them how to break sentences. The same goes for other conjunctions like so, but and because.
Adults really don't need to follow this 'rule' and the merits of teaching it to children is questionable.
Andy Naylor @AndyNaylorArgus 2m2 minutes ago
Cannot confirm whether Dale Stephens has handed in a transfer request. Can confirm it makes no difference to Albion's stance on him. #bhafc