I disagree. The Timberwolves have managed to lose to the Suns twice, the Grizzlies twice, the Nets, the Magic, the Hawks, and the Bulls this year. Those were supposed to be easy wins. Meanwhile, they're 9-6 against divisional opponents, currently tied with Denver for the best such record in the Northwest Division. That doesn't suggest that the compe ion in their division is their problem.
The Wolves' problems are Glen Taylor, Wiggins, Thibs, Teague and Dieng in that order. Bad ownership, bad coaching/GMing and mediocre players on overpaid contracts are a recipe for a treadmill team.