Firstly, '钱总'='钱总经理', that's no problem. Secondly, in terms of the listener's feeling, '钱总' souds like a native and will never be impolite,but '钱总经理' sounds like a foreigner or one whose head runs slowly. Finely, '钱总经理' maybe just be used in the case that u meet '钱' for the first time,or when u r in a meeting or something,u need to introduce '钱' to ur guests or others who don't know "钱", or used in cases u wanna emphasize the position of "总经理". In this dialog,'马' used '钱总经理' at he beginning and soon after he changed '钱总经理' into '钱总'.it sounds very polite at the beginning because the whole name of the position of '钱' has been emphasized. ) and after very natural and native-like.(because nowadays we're Chinese almost all using '*总') '钱总经理'= gerneral manager. As for '钱总先生', sounds wired and we won't use it.

Firstly, '钱总'='钱总经理', that's no problem. Secondly, in terms of the listener's feeling, '钱总' souds like a native and will never be impolite,but '钱总经理' sounds like a foreigner or one whose head runs slowly. Finely, '钱总经理' maybe just be used in the case that u meet '钱' for the first time,or when u r in a meeting or something,u need to introduce '钱' to ur guests or others who don't know "钱", or used in cases u wanna emphasize the position of "总经理". In this dialog,'马' used '钱总经理' at he beginning and soon after he changed '钱总经理' into '钱总'.it sounds very polite at the beginning because the whole name of the position of '钱' has been emphasized. ) and after very natural and native-like.(because nowadays we're Chinese almost all using '*总') '钱总经理'= gerneral manager. As for '钱总先生', sounds wired and we won't use it.

Firstly, '钱总'='钱总经理', that's no problem. Secondly, in terms of the listener's feeling, '钱总' souds like a native and will never be impolite,but '钱总经理' sounds like a foreigner or one whose head runs slowly. Finely, '钱总经理' maybe just be used in the case that u meet '钱' for the first time,or when u r in a meeting or something,u need to introduce '钱' to ur guests or others who don't know "钱", or used in cases u wanna emphasize the position of "总经理". In this dialog,'马' used '钱总经理' at he beginning and soon after he changed '钱总经理' into '钱总'.it sounds very polite at the beginning because the whole name of the position of '钱' has been emphasized. ) and after very natural and native-like.(because nowadays we're Chinese almost all using '*总')