LAX and guys on other boards have mentioned that pay is good enough to prevent poaching at this point, at least based strictly on pay.
That doesn't prevent a guy like Long from looking at a job in his home state, and stuff like that, but the pay is supposedly more than competitive now.
I'm pretty sure ND's counter offer that Elko initially accepted was for top 10 probably even top 5 DC money (at the time), so competitive (I want to say it was in the 1.3-1.5M/year range). But A&M having already been told no by Aranda (when LSU went up to 2.5M) was not taking no for an answer and essentially made him the second highest paid DC , at the time. 1.7M Venables, 1.8M Elko, 2.5M Aranda (A&M offered Aranda 2M) is how I think it broke down at the time. Venables soon after got a raise to 2M, I believe. ND wasn't going to make him the 2nd highest paid DC in the country at that time and I don't believe they like how he/they handles things either.
Interestingly enough, Aranda's original contract with LSU, for the 2016 season, was 3 for 1.2M, they increased that originally to 1.8M, and then ultimately to 2.5M to fend off A&M.