From the outside it very much seems that recruitment is a task shared between TK, Francis and the coach - with additional contacts from the owners.
Taking a complete guess I'd suggest that Francis is the main scout, with TK doing the numbers, and the coach having a couple of contacts and ideas....owners chipping in with some of the more marquee signings (MacWilliam, Mikkelson etc)
We saw some guys coming in who had experience in Germany when PR was coach (MacDonald, Olichefski)
Thommo seemed to only get Estes from his previous leagues/clubs, I'd expect Thommo to stay and have a couple of 'his' signings lined up for next season (reminder to self to start the Thelin rumour early)
I'd guess that most of the guys who have either come direct from NA or who have done a couple seasons in Europe before coming to the UK (Helgesen, Oligny) were via Francis and his contacts.
Obviously there are players who are retained from previous coaches, but they are retained presumably with agreement of the coach. And there are players who get referred or recommended by current or former Devils - look at Caponi, Yaremko.