Read between the lines here. Spack only suspended him and has made it clear no final decision has been made on his status. He was arrested for allegedly sell marijuana to an under cover agent. I believe this is his first offense and the quantity was somewhat low 10-30 grams. There is a reasonable chance if he gets a good lawyer that the charge could be pleaded down to a much lesser charge. My interpretation was if this happens he may not remain suspended. I wonder however if he was a backup player would he be afforded the same position from Spack. ISU Red lost there starting DB (I believe he was a LB last year) that transferred from Oregon last month - he was removed for team violations. He transferred in last year and was a key member of the defense. This winter they brought in a transfer from Iowa (LB) he was a starter at IA but had a run in with the law and was removed from the team. Spack has a history of bringing in low character kids to give them a second chance - not always, but many times transfers bring baggage along when they come from larger programs.
NDSU seldom brings in transfers. They recruit freshmen, red-shirt most of them, train and strengthen them, teach them the system from the ground up and win championships. Coach Sanford has said before that the best programs are built from freshmen. Realistically though many teams have gaps to fill and transfers fill those gaps.