I've got several put debit spreads that are now far out of the money and closer to expiration than I would like. Rolling them out is too expensive at this point.

As market conditions have changed since I opened the positions, I don't think the underlying will be near my strike prices at expiration. Is it possible (or, more importantly, advisable) to turn them into credit spreads by selling my long put and purchasing one below the short put?

So turn +XYZ 100p and -XYZ 95p into -XYZ 95p and +XYZ 90p

The only downside I see is that I need more capital for the collateral, but if I can get out of the trade without losing my initial outlay, it seems worth it.

I feel like I'm missing something obvious and would love for someone more knowledgeable to point it out so I can learn.