When I was doing my prep ahead of the fantasy rugby draft I realised that across the league the centre partnerships that most clubs will be fielding are nothing to get excited about...
The exceptions for me were actually only Tigers (Toomua/Tuilagi) and Quins (Saili/Marchant). With the obvious added problem that Tuilagi and Saili are injured most of the time.
Imo it feels like centre is an area of mediocrity for most clubs. Maybe they just don't prioritise it?