How does 8 years grab you?
Would you have been whingeing about Hird after his first year?
Now what about Orazio Fantasia??
Neither of them had any impact in year 1, for various reasons.
None of those names are, I'll grant you, in the Peter Somerville class.
But what your ridiculous example does show is sometimes you persist with guys, because you see something in them.
Probably not 8 years, but more than maybe their output would dictate. Doing stuff like fighting to keep Hird and keeping on Wally and Somerville, despite them not doing that much, was part of what made Sheedy great. It's just funny now you have the shoe on the other foot because... reasons.