Bologna don't have experience to compete for top four position and potentially they will have problems to maintain their good performance in future. It will give chances to Napoli and some other clubs like Roma, Atalanta. Napoli can not control how Bologna play but they can control their performances. It is what they must focus on first and wait for green light from Bologna, Roma and Atalanta.
Don't underestimate underdog teams like Bologna, however, football can still give surprises, even teams with no experience can still compete there if their performance is impressive and that's what Bologna is doing now, they are performing impressively and consistently so they managed to occupy fourth place even though they still have a long way to go. long and AS Roma and Atalanta still have a chance to take that position but Bologna also still has a chance to maintain their strength and for Napoli I don't know whether next season they can compete again in the UCL because their performance is not so stable.