Ten issues for Pac-12 spring practices

While most Pac-12 teams don't begin spring practices until March, Arizona is set to kick things off Friday. That means we need to quickly refocus from looking back at the 2015 season and celebrating -- or bemoaning -- national signing day and start to examine issues teams face heading into the 2016 campaign.

Here are 10 concerns for you to cogitate over during the coming months.

1. Transfer QBs: Only four conference teams will feature returning starters at quarterback this spring, and with the remaining eight, only five -- some might say three -- have wide-open battles without a clear favorite to win the job. A big reason for that is three transfers who are expected to start in 2016: Dakota…