I can see this being a positive for us but only if managed right.
For players going to Saints, it should only be players who are getting limited game time (and likely would regardless of the DR agreement) or players returning from injury and needing match fitness before coming back into our first team squad.
For players coming from Saints, I hope they are used to keep the quality up while players needing a rest get it for that reason only. If they replace our better players in games, to keep Saints happy, then it will damage team spirit.
JD has mentioned squad rotation several times in interviews and this is where I see quality Saints players helping. What I don’t want to see is a reliance on DR’s who are not available when the playoffs are here. We need our own players bonded and able to play as a cohesive unit at that time. With 4 quality halfbacks to call on, what so far looks like a mobile and strong pack and some dangerous backs out wide, I think we have the squad to give us a good chance of being in the running come the business end.