I was looking at Rivals Top 35 DT's for 2017. There are only two in the 500 mile radius and one of them is already committed to Iowa. The only two offers in the Top 16 I see are to a kid in Nevada (Garrett) and in PA (Jeter). Whoever is hired for coach at DL is going to have to work extremely hard to land any of the top prospects. I haven't seen a list of Top Juco's for 2017 at DT but it appears NU will have to get at least one whoever that might be.
A map of all DT prospects is at https://rivals.yahoo.com/m/football/recruiting/rankings/rank-3670/2016/map
A map of all DT prospects is at https://rivals.yahoo.com/m/football/recruiting/rankings/rank-3670/2016/map