In my opinion, Bologna is not a small club, they have a pretty good history in Serie A, they are recorded as having won 7 titles in Serie A, so don't underestimate them as a small team, even though their performance in the last few seasons has not been that impressive
Bologna won some Scudetto but a last time they won it is 60 years ago.
Serie A
Winners (7): 1924–25,[17]1928–29,[17] 1935–36,[17] 1936–37,[17] 1938–39,[17] 1940–41,[17] 1963–64[17]
[1]
https://en.wikipedia.org/wiki/Bologna_FC_1909They even were not good enough to win Coppa Italia with a last title is in 1973 - 1974 season.
this season it seems like they are starting to did their best and have returned to their best performance to compete for UCL tickets, Bologna proved to be putting a lot of pressure on Atalanta even though they played away from home and were able to win, bringing them to their current position
So far they play well and they beat Atalanta very impressively but they must work hard and continue their good performances to secure their fourth position as Roma, Atalanta are strong too and not too far from Bologna.
and to face Inter Milan it was quite difficult for Bologna but at least they can still maximize their draw if they are not able to beat Inter considering Inter's very strong performance, hopefully the home factor can make Bologna play a little surprising because the teams below really hope that Bologna will lose and slip from their position so that there is still a gap to overtake them.
The match with Inter Milan will be key for Bologna, if they lose, they will no longer have good difference to Roma as with recent form, Roma will win their match this week. When a difference between two clubs become smaller, Bologna will feel more pressure and might fail to defend their position. It can happen with any inexperienced team in a tough race.