After all, it would be tragic if House's knowledge were lost when his career ended

Yes - absolutely! Once again apparently Diagnostics was completely disbanded when House was 'gone' why? Had Chase not learnt anything in 6-7 years under House? (similarly when House was in Mayfield, and the department was shut down). Okay, they may not have had House's spectacular success rate, but surely would have better than nothing...rant, rant...sorry :)