Cole had scored 2 goals in 18 months before he joined us. Exactly the kind of record you complain about.
Then he refused a new contract with us for a better deal in England (thanks in part to the improvement in his development at our club).
Again, I'm sure if you have constructive ideas on ways to keep a player like him when he didn't want to stay, the club will be happy to hear them.
Also, if you have that list of strikers who guarantee goals at our level, that we can afford and that want to play for us, feel free to share it.