Pat Shurmur expects “great improvements” from Laquon Treadwell

In 2015, fifth-round Vikings rookie receiver Stefon Diggs had a major impact in his first season. In 2016, first-round Vikings rookie receiver Laquon Treadwell did not. With offensive coordinator Pat Shurmur going from “interim” to “permanent” (as permanent as the job ever is), Shurmur expects Treadwell to take a major step in 2017. “[Treadwell] is…