Napoli only plays in Serie A, and this is why Napoli players have been able to give their full focus on Serie A .
On paper, it is an advantage for Napoli but their performances decide will they win Scudetto, not any paper assessment.
Even then, Napoli's overall performance is not stable. And napoli is not in good form at the moment.
Napoli team has drawn consecutively in the last three matches. However, Inter Milan's performance is also a bit erratic now. Napoli had a big chance to increase the point gap with inter milan. Now the performance of both Napoli and Inter milan is quite erratic. If Atalanta can continue its good performance, then atalanta has a chance to occupy the top spot of the table..
Latest performances of Napoli are really bad and they luckily secured their first position because during same recent weeks, both Inter Milan and Atalanta did not have good performances too. Napoli have to focus and resume their good form, because they can not depend on bad performances of two competitors, to win Scudetto. First it's really risky to wait for chances from competitors and secondly it's not well deserved to win Scudetto this way.
Playing only the championship is certainly an advantage for Napoli, it can better manage the forces, unlike the Inter which is still engaged in all competitions and therefore the drop in performance can be there. If Napoli really wants to win the Scudetto, he must know how to manage the strength and results well, so far he has also been lucky on this point