The way I read it Jackie was saying that we can't afford to sign a player who can't play first team football because he's "one for the future". I didn't take it to mean that Lindsay, basically untried at first team level, would be first choice at either a left back or centre back. Similarly I don't expect Sean Fraser will be a first choice striker but he is expected to be able to put in a productive 90 mins if called upon. I assume Lindsay will be on equal footing with the likes of Sean, Ryan MacBeth & Burns.
I suspect minds were more or less made up about Sinclair before the Blyth game as I doubted we'd publicise the fact that terms were already agreed and not sign the guy. Perhaps the immediate cash involved is nominal with "sell ons" and/or other stipulations like number of first team appearances that sort of thing?