Hellickson QO is fine, buys time for young pitchers to mature, especially at Lehigh and Reading. They're building up nice pitching depth, not sure Buchanan would have cracked the Lehigh rotation with Hellickson back, since that means Morgan/Thompson/Asher may start the year in Lehigh.
Nola - Eickhoff - VV - Hellickson - Eflin (can't wait to see him with healthy knees)
Gomez - Neris - Ramos - S Gonzalez
Really, at this point they should only be looking at top RPs.
But the numbers suggest why they would listen to offers for VV if they don't think he has #1 potential, they have plenty of #2/#3 type pitching prospects
I think the biggest struggle for Klentak is to resist the temptation to make a move to "win now," he almost has enough pitching, but this is where patience should pay off, let the pitchers grow up, the prospects mature in Lehigh and trade only to replace quantity (the 40 man roster squeeze) with quality (maybe a 3 for 1 deal for a top prospect).