Did anyone hear Tony Beak on Chris Evans this morning? He was clearly toeing the party line, saying what a fabulous series it is, how everyone was fantastic, Saturday night was brilliant, Charles was best male celeb rumba ever, everyone deserving 9&10s, yada yada.....
He also praised Shirley for her knowledge and dance skills, altho did say he didn't always agree with her marks 
Also asked by a listener who chose the dances and songs each week, cos some songs were rubbish! He laughed at that but then seemed to be back on BBC message by saying producers choose order of dances to give a mixture each week, tho sometimes this can change down the line. Pros choreograph dances but can have experts in for about 4 hours for AT, salsa and Charleston. Pros choose music but, because it gets harder to find new music after 16 series, the producers can veto choices, then pro will liaise with music director to find something else but similar to original song.