He is going to do well if he is still there next season. Can't see their fans being as patient as some of ours with his nil nil borefest rubbish.
I'd be surprised if he was there next season. He was hired to give them that extra something to get them up, and he's been responsible for some really poor results.
If their owners are investors rather than 'football people', they'll be wanting to see return quickly, and that means promotion, since it immediately hikes the value of the club. No way anyone pays £40 million for a League One club unless their plan is to get up into the Championship sharpish. As others have said, Ipswich have vast potential but to realise it, much less monetize it, you have to be winning. If Cook doesn't get them into the playoffs (which is unlikely in the extreme now), he'll be toast, because every season they're stuck in League One, they'll be losing ever more money, which makes their margin smaller when they do get promoted and could them probably get a return on their investment.
What Ipswich fans should be wary of is that if they get to a point where it doesn't look like they'll ever realistically be able to recoup whatever costs they've incurred, then they could be left high and dry like we were when the investors decide to try to get as much as possible back by liquidating assets. No-one (proper football fans at least) wants to see any other clubs in that situation, and I would be a bit worried if I was an Ipswich fan. If it goes well for them, great, no doubt it'll work out, since as long a the club's stock is rising, they'll keep pumping money in, but as soon as it's not seen to be adding value, as any investment orientated company / individual (as opposed to an owner who actually supports the club) would do they'll jump before they incur further losses (or their profit shrinks).
It's a difficult scenario, since it could go well if willing investors put the money in and results follow, but if performances and results aren't putting them where they need to be, it could all go horribly wrong very quickly... as us Latics fans know all too well.
My point is that if it goes well, it goes very well, but Cook is in a very exposed position... he's the guy they will hold responsible for on field performances and results, and they won't be patient if it's not going well, since their costs are racking up to the tune of millions with each season they don't get promoted. Given how poor a start he's had, I doubt they'll trust him with big money for signings if he doesn't even make the playoffs this season, since that was the target they gave him. I suspect that unless they play a blinder in their remaining games and sneak back into a playoff slot, Cook will be replaced immediately so a new boss has time to identify targets.