You could be right but Minnesota has to surprise a LOT of people to finish Top 10 in the conference. 13 teams are pretty unanimously picked to finish ahead of them by many different people.
ESPN Story. ESPN for instance picks the Top 13 Transfer Portal teams in the country...I'm citing because you mention 3 of them as teams you think we'll finish ahead of...yet ESPN has them as 3 of the 13 best hauls in the country. Big Ten has 5 total of their 13 best. Michigan, Washington, Indiana, USC and Iowa. And they don't include Illinois lauded by many and Maryland given a B+ for their transformation by the other thread writer.
Several people have Iowa top 5. I think you are forgetting the coach...the National championships, what he did in one season at Drake winning the conference title and an 11 seed beating a 6 seed in the NCAA...now he has better players at Iowa.
In my opinion the Big Ten is much stronger...not down. Everybody pretty much in any conference has a new team except Purdue...exaggeration but some truth too.