Definitely save the cash.
I know that some people think 30M for Jovetic is idiotic (I'm not one of them; I was always pretty sure Fiorentina wouldn't really budge from their valuation given what happened last summer, and if we hadn't run into a phenomenal - and RARE - type of deal for Tevez I'd still be calling for us to overpay by 5M for a guy like Jovetic), but 20M+ for Coentrao would be a much riskier move, in my opinion. A move for Di Maria, at 30M+ (and I do think it would be plus, if they made him available), when our base formation is a 3-5-2... yeah, that doesn't make a ton of sense to me unless Conte is intent on rejigging things substantially - which he really doesn't seem to be at this point, based on our moves this window.
Too bad about Jovetic, he would have been a great addition to the club, but I am still amped for this coming season; our club is looking solid!