I disagree with quality>quantity.
One or two players is not going to turn this team into a contender. SA is making the right moves trying to put us in position to compete in 4ish years, with David/Niese as dependable veteran leaders ushering in a slew of 'spects.
We are bad. Stockpile talent, and cross your fingers. That's our best bet to get back to meaningful baseball. Not sacrificing for a "missing piece". We could do that with the team with the core of Delgado-Beltran-Wright-Reyes. There is no plugging leaks at this point.
To reiterate... we are bad.