I always think of a Super League squad has typically four segments
Overseas players (likely to be highest paid players and probably better than your average)
Home Trained Players (wages vary depending on previous club and a mix of quallity)
Club Trained Players in top 25 (On various amounts and variable quality but generally cheaper than external signings)
Outer Squad Club Trained Players (probably on low wages and of variable potential, little proven ability)
The Doctor had a team broadly equivalent to ours - a squad that had finished in the bottom three since 2007.
The good club trained players had been systematically poached.
So he was building on a poor base of players.
He was also a bit naive in that he would have signed Red Rum rather than a horse with lineage traceable to Red Rum and thus with something in front of him rather than a good career behind him.
He was then signing players who have had an ordinary career but one good season.
I wouldn't give Harris the job because he took a top 8 side to one that went to just 4 wins and is thus unproven so I don't think he's learnt his lesson in entirety.
But now he is understanding the market a bit more, taking a gamble on younger prospects.