All I can say is England have been fortunate in this tournament on the basis that:-
1. They warmed up against scotland, then Italy first
2. They then had a 2 week rest period before playing the two difficult fixtures of Ireland and Wales
3. They had Ireland and Wales at home
4. They managed to play Italy away in Rome in valentines day, to boost the travelling support
5. They drew the very last fixture of the Tournament, so if it was still up for grabs, they would have known exactly what was required of them tomorrow
6. Im not sure how Joe Marler wasnt suspended for two conclusive incidents when Wales Rob Evans was suspended for an inconclusive to incident.
Other than that, yeah they've done really well !