Rome against Bologna is gonna be a super hard match for the rome team, i mean they start against one of the best teams from last season in the debut of Gian Piero Gasperini as main coach of the team, i can expect Rome doing a super good tournament in this season.
They maintain the key players from last season and have a better coach now.
I think AS Roma will have a new look this season, with new strengths, and now with a very experienced coach like Gasperini, Roma will certainly be a strong team this season. Against Bologna, I'm confident Roma will aim for a positive result to boost their confidence. Bologna isn't weak, but this match will be played at Roma's home ground, which will give Roma an advantage in getting three points in their first match of the season.
Roma can be considered a strong team this season because, as you said, they've retained key players from last season, plus Gasperini's undeniable ability, having been successful with Atalanta. So I think I'm confident he'll repeat what he achieved with Atalanta at AS Roma. Betting on AS Roma to win is a good bet for me.