I've been watching Hull for 16 years and in that time we have had some very good hookers, I think Houghton over the last few months as surpassed Swain for me personally and hope this carries on for many seasons yet.
But when his time does draw to an end we definitely need a specialised hooker to replace him and Naughton is certainly not that and never will be imo. Although I expect Naughton to be a very good try scorer on our wing for many years.
At the minute Houghton as become irreplaceable however and we need to hope he stays injury free.
As we saw at St Helens our team have no back up and the fact just about every player stepped in and took his job from the play the ball showed that, some more successfully than others too I must add!