Not sure what you mean here. Here are the raw stats, per 40 minutes:
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║ Season ║ School ║ Conf ║ G ║ MP ║ FG ║ FGA ║ FG% ║ 2P ║ 2PA ║ 2P% ║ 3P ║ 3PA ║ 3P% ║ FT ║ FTA ║ FT% ║ TRB ║ AST ║ STL ║ BLK ║ TOV ║ PF ║ PTS ║
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║ 1999-00 ║ Kansas ║ Big 12 ║ 34 ║ 774 ║ 7.5 ║ 15.1 ║ .497 ║ 7.2 ║ 14.4 ║ .502 ║ 0.3 ║ 0.7 ║ .385 ║ 3.2 ║ 4.8 ║ .674 ║ 12.1 ║ 2.0 ║ 1.9 ║ 1.7 ║ ║ ║ 18.4 ║
║ 2000-01 ║ Kansas ║ Big 12 ║ 33 ║ 892 ║ 8.4 ║ 14.0 ║ .597 ║ 8.3 ║ 13.8 ║ .601 ║ 0.1 ║ 0.2 ║ .400 ║ 3.8 ║ 6.1 ║ .625 ║ 10.0 ║ 3.2 ║ 1.6 ║ 2.4 ║ ║ ║ 20.7 ║
║ 2001-02 ║ Kansas ║ Big 12 ║ 37 ║ 990 ║ 9.9 ║ 16.7 ║ .592 ║ 9.8 ║ 16.4 ║ .596 ║ 0.1 ║ 0.3 ║ .375 ║ 3.4 ║ 5.9 ║ .575 ║ 12.4 ║ 2.6 ║ 1.6 ║ 3.4 ║ ║ ║ 23.3 ║
║ 2002-03 ║ Kansas ║ Big 12 ║ 38 ║ 1232 ║ 9.1 ║ 16.5 ║ .554 ║ 8.7 ║ 15.2 ║ .571 ║ 0.4 ║ 1.2 ║ .342 ║ 4.1 ║ 6.5 ║ .635 ║ 12.3 ║ 2.7 ║ 1.4 ║ 2.4 ║ ║ ║ 22.8 ║
║ Career ║ Kansas ║ ║ 142 ║ 3888 ║ 8.8 ║ 15.7 ║ .562 ║ 8.6 ║ 15.0 ║ .571 ║ 0.2 ║ 0.7 ║ .359 ║ 3.7 ║ 5.9 ║ .624 ║ 11.8 ║ 2.6 ║ 1.6 ║ 2.5 ║ ║ ║ 21.6 ║
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vs.
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║ Season ║ School ║ Conf ║ G ║ MP ║ FG ║ FGA ║ FG% ║ 2P ║ 2PA ║ 2P% ║ 3P ║ 3PA ║ 3P% ║ FT ║ FTA ║ FT% ║ TRB ║ AST ║ STL ║ BLK ║ TOV ║ PF ║ PTS ║
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║ 2011-12 ║ Gonzaga ║ WCC ║ 22 ║ 145 ║ 6.3 ║ 11.3 ║ .561 ║ 6.3 ║ 11.3 ║ .561 ║ 0.0 ║ 0.0 ║ ║ 2.8 ║ 6.3 ║ .435 ║ 14.3 ║ 1.1 ║ 0.6 ║ 0.3 ║ 1.7 ║ 3.6 ║ 15.4 ║
║ 2013-14 ║ Oklahoma ║ Big 12 ║ 33 ║ 964 ║ 4.8 ║ 8.2 ║ .584 ║ 4.6 ║ 7.7 ║ .602 ║ 0.1 ║ 0.5 ║ .273 ║ 3.4 ║ 5.0 ║ .686 ║ 12.7 ║ 1.9 ║ 0.7 ║ 1.3 ║ 1.6 ║ 3.9 ║ 13.1 ║
║ 2014-15 ║ Oklahoma ║ Big 12 ║ 24 ║ 746 ║ 5.5 ║ 9.1 ║ .606 ║ 5.0 ║ 7.7 ║ .650 ║ 0.5 ║ 1.4 ║ .370 ║ 2.5 ║ 3.3 ║ .742 ║ 10.3 ║ 1.8 ║ 1.1 ║ 1.7 ║ 1.7 ║ 2.9 ║ 14.0 ║
║ Career ║ Overall ║ ║ 79 ║ 1855 ║ 5.2 ║ 8.8 ║ .591 ║ 4.9 ║ 8.0 ║ .616 ║ 0.3 ║ 0.8 ║ .342 ║ 3.0 ║ 4.4 ║ .675 ║ 11.9 ║ 1.8 ║ 0.9 ║ 1.4 ║ 1.7 ║ 3.5 ║ 13.7 ║
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Collison was way better on assists, steals, blocks and overall usage rate. Spangler is only his equal on FG% (not a surprise with fewer shots) and rebounding.
Collison was a consensus all-american his senior season, when his numbers were quite similar to his junior year (he just played more minutes).
I don't think Spangler is that kind of talent.
Sort of like the situation with Tony Allen--a very good scorer in college that is outclassed on that end in the NBA; he's reinvented himself as a defensive expert.