There is a tremendous amount of bias and selective memory involved in recruiting. The tracking system and notes help fight this a lot. General comments like "

There is a tremendous amount of bias and selective memory involved in recruiting. The tracking system and notes help fight this a lot. General comments like "Math majors can't do recursion" or "We do best with employee referrals" can be systemically checked. Perhaps the only thing I would add to the process is I like to keep feedback private until it's decision time. If there are 4 people interviewing, they should have assigned roles in advance, and submit feedback anonymously first. Otherwise everyone just agrees with the boss.