Market Values means nothing!!

I have a player worth 3.4m Quality 27 Quality (5Star) in theory he should be the best trainer on my team I have several 18 yr olds around 25-29 Quality with value between 1.8m and 2.5m who train faster than him. Its not even reflected in performance!

My guess is Market value also takes into account Injury likeliness.

Also with my team value being over triple that of others I'm my league I should be stomping yet I loose random games! (even using correct formations to counter or even just mirror!), Market Value to me is just a number! I'll still buy high value players and sell them season end if they don't meet my expectations but so far the value isn't a good indicator!