Twolves want to trade Al Jefferson why ?

I haven't seen the wolves play since 2004 when they had kg and spreewell.Dose anyone watch wolves games I thought al jefferson was a very good player why are they trading him they are not going get wade or lebron or any free agents they are a rebuilding team and al is young so what is point of trading him financial reasons? the dui ? And why did they draft Wes Johnson instead of demarcus cousins? Wes Johnson plays exactly like corey brewer with a better jumpshot