Note that Paraves (Eumaniraptora) existed at the same time as the earliest coelurosaur dinosaurs. Paraves were primitive birds with pennaceous feathers. Paraves could not have descended from coelurosaur dinosaurs.
(Click to enlarge).
Note Eumaniraptora in the chart above. It is on the far right. You can see that it extends back to the time of the very earliest found coelurosaur dinosaurs.