I reckon we beat these guys, we beat Shaktar at home and try and get a point in Naples, outscore Napoli at home, win the last two games, 16/18 points and we top the group, simples.
Except it won't be. Every game will probably be really hard. That said I often expect games to be difficult which we end up winning 4-0, 5-1, 3-0. So maybe I'm not the best judge of these things. At some point we will need one of Shaktar and Feyenoord to do us a huge favour and take points off of Napoli though.
At least we're not Tottenham. Real Madrid and Dortmund? They're fucked.
Also, Otamendi occasionally has a poor game against strong opposition with pacey wingers. 90% of the time he's superb. He starts this one for me, no question.