I know you love the transfer windows Daps, but it's not as simple as you're making out.
Yes, we could get one of our top targets and turn out to have been completely wrong about their potential in our team. But I'm sure every striker we've gone after has been thoroughly scouted and they're confident they have a good chance of succeeding here. How many options do you think is realistic for us to have? At a certain point, you're going to be reaching and it will be a waste of money. It's not as if there's a huge list of players who fall into the Venn diagram of both being good enough and affordable.
I'd rather sign no-one than sign someone for the sake of it, which is what you seem to be advocating.