Set pieces (corners in particular) are generally overrated as goalscoring opportunities. It is amazing how many sets of fans will say that their team is terrible at them. I think the way inwhich they are built up compared to how often goals come from them there is a huge disparity - across the sport as a whole - which leads to people thinking their side are shit at them.
That said I do think we are particularly poor, both in our execution and the players we have that are dangerous from them. May as well just go short rather than spunk them away. I can't stand the long floated free-kick towards the keeper in particular.