So your solution for us having limited funds is to concentrate our spend on the group of players with the highest degree of uncertainty and risk (youth players)?
The majority of youth players fail. I'm not saying we shouldn't sign any -- obviously you have to -- but to bury your head in the sand and deny reality does nobody any favours. 5 million on youth players you are gambling on one day being worth more is arguably more of a risk than 5m on a 30 year old you are fairly confident can do a job.
I'm not a huge Kone fan so I'm no particularly passionate one way or the other but if I'm analysing both options there are risks either way and it's hardly as obvious a choice as some of you seem to believe.
You're not comparing the same type of risk though.
There is risk number one: will this player perform on field to a standard that will cause benefit to the club?
There is risk number two: will this player perform on field to a standard that will at least cause his likely monetary value increase?
There is risk number three: will this player reach an age during his contract at which he will see a drop in resale value (taking into account the position he plays)?
Kone is a MASSIVE risk under category three. Strikers generally speaking suffer a big dropoff in production and performance once they reach their 30s.
He is less of a risk under category one, because he has played and scored in the prem - not just that, but he's done it for our current manager, who knows how to utilise him to best effect.
He's an above-average risk in category two: his body of work does not suggest he is worth anything more than the £5m being suggested for him, and he will have to deliver at least two seasons of performing at a better level than he did at Wigan in order to increase in value.
A younger player from overseas (Finnbogason, anyone?) would be more difficult to assess in categories one and two, but runs zero risk in category three. In fact, a young player can see their transfer value increase simply by getting older and performing at an average level for their age and position. If Kone performs at an average standard for two years he becomes worthless; if A. N. Other, aged 21, comes in and is average, you'll at least get your £5m back because he's no worse than Kone and a lot younger.
There are ways this can be a good transfer: if Kone scores enough goals to see us recoup his transfer fee, by means of moving up the table and getting more money or winning a cup and more money, or by attracting another club to buy him for a similar fee in two years, or (and this is less likely) scoring so many goals that we qualify for the CL and get through the group stage.