I thought RTE announced Duffer was on their pundit panel for the World Cup. Either I'm wrong or I have missed him or he hasn't been on yet. Could be the very latter as he might have taken a little break post cup final. He is another that is like Doyle in that he can be energized by his partners or more that his partners can impact his tone like wet blankets.
Another thing about Doyle is that sometimes he looks a tad hungover or something. Not cast aspersions on his professionalism - I think he owns and runs a bar and works with horses and none of that work is conducive to standard office hours.
He's a likeable fella and knows and loves his football and his knowledge is current.
Himself and Sadlier would have been a good strike partnership too if things went a different way!