Because of higher response rates (about 30%) with FOLFIRINOX, this regimen is now widely investigated in the neoadjuvant setting. Therefore, investigators hypothesize that neoadjuvant FOLFIRINOX may enhance the outcomes of patients with borderline resectable pancreatic cancer. This study will assess the feasibility and efficacy outcomes of neoadjuvant modified FOLFIRINOX and postoperative gemcitabine in patients with borderline resectable pancreatic cancer.