one big problem that i found most software development methodology ignore is whether you are the developer or the client (the IT department hiring contracting

one big problem that i found most software development methodology ignore is whether you are the developer or the client (the IT department hiring contracting the developer) you have to agree on an offer/contract, which include scope + price/cost how can i be lean or agile or whatever, if i am bound by a contract from the start ... making change requests mean that me the IT department failed to deliver on time and on budget, which eventually leads to bad annual reviews ... having the have a contract or a signed offer approved by business, enforces the water fall model, an internal IT department have to do this to protect itself from the client when a change request is made later on ... of course i am only speaking on the situation where you work in an IT department and getting your software developed by external vendors