There are 2 ways at looking at this:
Naismith great under Cook in L2, stepped up under a different manager and did nothing therefore he is a L2 standard player and the change of manager made little difference.
Or Naismith is one of these players who has talent but needs the right manager to bring it out, Cook was that man and him leave Pompey was the reason why he didn't do well in L1 rather than because he lacked the technical ability to step up.
We see the latter scenario time after time in football where players go from kings at one club to cast offs at others and it's often down to the managers relationship with that player just look at the likes of Yanic, Zog, and Ellingtons careers with us nose dive after leaving. The reverse is exactly the same when we signed players like Koumas, King, Toney, who did well elsewhere but flopped here. So there's absolutely a good chance that Naismith couldn't thrive again under Cook.
I look at Jackett as a man manager and see other players Jackett didn't want thriving in L1 after he offloaded them from Pompey and think that the latter scenario is very possible. Every signing is a gamble and either of the previously mentioned scenario is possible so i just think we shouldn't read too much into his last season when there is as much potential to be optimistic as there is pesimisitc. If we looked at previous seasons performance alone then we probably wouldn't have signed a number of the lads who excelled for us as they often faltered at other clubs.
Personally i think we've been thorugh the skeptism of players when they sign only to see them prove all the concern unjustified enough times to keep an open mind on any new arrivals. If Naismith isn't much good next season then fair enough but let's not feel too downhearted on the lad until we see him in a Latics shirt playing under Cook again.
