Normally your value would be right there, but it's not this year. People are valuing those first-rounders with a good deal of husbandry. To use a trade calculator, KTC has the first round pick worth significantly more than those picks.
And then think about it: Why are you willing to offer that deal? Did you think you were coming over the top? If not, then chances are you value it the same way that others do. It's a tough predicament and one I found myself in this year. I wound up making the picks instead of being able to deal them. Let's hope that works out.