I kinda think good strikers always blow hot and cold. The really good ones just have more good days than bad. I think it's probably true for Simms as well as Haji, both have the ability, it's just whether Frank can unlock it.
Howley and Stretton both looked decent prospects but I'm now expecting both to be let go at the end of the season. Andrews seems to be the one who might make it but have heard very little about his loan spell.