MacLean and Murray have a history together and the word is MacLean was very impressive in his first interview. MacLean has since been in for a second conversation so it's definitely looking like he could be the guy.
I don't have any confirmation on my side of things but the word of McKenzie is as reliable as it gets.
The Sens definitely had an interest in MacTavish as well but I could definitely get behind this hire, if this is in fact the direction Murray chooses to go. MacLean has been with the Wings organization for the last five years and has experience working with one of the best in Mike Babcock. He may not have head coach experience at the NHL level but by all accounts. he's ready to make the jump.
Will try to confirm the McKenzie story and update the site whenever possible.