No hard and fast rule.. for some, manager post may be entry level.. and for others, it requires yrs of experience. A good deg will put you at the front of the pack amongst your fellow fresh grad peers, but hard to beat working experience. Since it's a Sr mgr/mgr posting, likely a higher grade position, with experienced candidates being offered the 'snr mgr'title if they get it. Also, if there are internal candidates, or those coming back from studies, those would likely be given priority.