you can train him if you want.. or sell for cheap price. but if you can have one or two trainees besides him train them along!
1st train his jump range until respectable then do some one on one guards training. then train his primaries/
but ill go for SELL.. because he`s 20yrs old next season you can always buy good 18yrs old trainee than him next season. =P
Someone once told me I needed to face fear to get over it, and I thought well why not take a step further and cut my fear into little pieces then set my fear on fire then throw the hot ash of my fear into a lake and then poison the lake. Simple!