Does anyone know why he has always seemed to be vice captain but never full on captain? Its not like he does not have it in him or anything but maybe he is holding back for his own good?
Maybe he just doesn't want the top position. Some people are fine being in second chair, helping out by assuming the leadership position when necessary but not desiring it on a full-time basis.
He lost captaincy to Sangakarra. Yuvraj is going through a bad patch. May be one or two good scores should see him through. Such lean patches are inevitable and are part and parcel of cricketers career. Let's wish him well.