Who has exactly been overrating Danny? All people are saying is that he deserves a solid chance upfront. You've made your mind up after he's only had one start? Do you really think the club will have 2 expensive strikers on the books? I think that's unrealistic.
If you tell me Sturridge was shocking against United even though you've watched the above video again you've obviously just got a dislike for him. He was actually pretty good, as you can see in the video his overall play was pretty excellent especially if you include extra time.
^ if you apply the same logic for Atletico Madrid, they wouldn't sell Falcao in January either since they'd want to qualify at least for the CL, and without Falcao it'll be very very tough for them to do so.