I was/am hitting around 1g per lb of LBM per day and I went up 20lbs since January. How each person gains is different as all hell. Some can gain with 1g some need more. I just cant fathom how this person ate so much for a semester, took in that many cals and that much protein and only gained 12lbs (1/3 being fat). Either he is an upper elite trainer and its difficult for him to gain, the fact he asked this question leads me to believe that is a no, he was "in season" or he did something incredibly wrong taining wise.
If you're going to be playing your sport during the summer you're going to need your carbs, period. You're going to have to find what you expend on a daily basis and go from there. To find out what works for YOU start off at 1g and go at it for a month and see the results you're getting. If its not what you are looking for make the necessary adjustments i.e. add more protein, remove some carbs or fats. Only YOU know what works for you based on the results you're seeing.