Of course this is possible. Girona is playing really good matches in the league this year. Artem Dovbyk is a true striker. If Real Madrid had him, I'm sure he would contribute more than Joselu. Joselu was a player who I expected to be better in his Real Madrid career, but he performed very poorly this year. I think Girona can easily take the lead with a little luck.
These are two different players and are playing for two different teams. You are right that Artem Dovbyk would have been a better striker at Real Madrid if they had him in their squad but unfortunately they had to settle for Joselu since they don’t have the clinical striker they deserve for now. I also feel that Joselu doesn’t have enough playing time at Real Madrid and that is amongst the issues he couldn’t perform well to their expectations.
The match between Real Madrid and Girona will be one of the biggest match to be played this season as they both battle for who will take over or retain the first position on the standings. Playing the match at the Santiago Bernabeau should be a major factor for Real Madrid to win the match but Girona won’t make it look so easy for them to win. The match will be very competitive and the winner cannot be easily decided so soon.